"Edmund M. Clarke, the FORE Systems Professor of Computer Science Emeritus at Carnegie Mellon University, has died of Covid-19," writes Slashdot reader McGruber.

From the Pittsburgh Post-Gazette: Professor Clarke was best known for his work in model checking, an automated method for detecting design errors in computer hardware and software. CMU president Farnam Jahanian said the world had "lost a giant in computer science" with Mr. Clarke's death. "Ed's pioneering work in model checking applied formal computational methods to the ultimate challenge: computers checking their own correctness," Mr. Jahanian said in a statement. "As systems become ever more complex, we are just beginning to see the wide-reaching and long-term benefits of Ed's insights, which will continue to inspire researchers and practitioners for years to come."

In the early 1980s, Mr. Clarke and his Harvard University graduate student, E. Allen Emerson — as well as Joseph Sifakis of the University of Grenoble, who was working separately — developed model checking, which has helped to improve the reliability of complex computer chips, systems and networks. For their work, the Association for Computing Machinery gave the three scientists the prestigious A.M. Turing Award — computer science's Nobel Prize — in 2007.

Mr. Clark's citation on the Turing Award website said Microsoft and Intel and other companies use model checking to verify designs for computer networks and software. "It is becoming particularly important in the verification of software designed for recent generations of integrated circuits, which feature multiple processors running simultaneously," the citation page said. "Model checking has substantially improved the reliability and safety of the systems upon which modern life depends."

Since 1955 the U.S./Canadian operation that monitors North American airspace with radars and satellite to maintain air sovereignty has also, at Christmas time, been tracking Santa.

And this year their trackers received additional support from the U.S. Space Command, a joint-military command drawing its units from five military service branches (including the U.S. Space Force). That command "launched a new reindeer tracker to pinpoint the exact location of Santa's sleigh at any given time during the night," according to NPR's Morning Edition, with General James Dickinson telling them the equipment's official name: Rudolph Infrared Tracking System. "We made some upgrades this year."

And that was just the beginning, reports The Hill: Santa knows astronauts need presents, too, and made his first known visit to the International Space Station to deliver them this year.

The North American Aerospace Defense Command (NORAD), which tracks Santa's Christmas Eve journey every year, depicted in a tweet Santa arriving at the International Space Station on Christmas Eve...

The Federal Aviation Administration cleared Santa for the flight to space on Wednesday, providing him "for the first time ever" with a special commercial space license.
The astronauts aboard the ISS recorded a special Christmas video this year. (And a new article in Business Insider expores how astronauts on the space station have celebrated Christmas over the years.)

And NORAD is even maintaining a special web site at NORADSanta.org which not only let visitors track Santa, but through December 31st will also offer an arcade with Christmas-themed videogames, a selection of music by the U.S. Air Force Academy Band, and even a gift shop where you can buy "Santa and NORAD gear," including NORAD hoodies and tote bags.

Though a pop-up window warns visitors that "Clicking through to this next website does not constitute an official endorsement or approval by the United States Department of Defense or NORAD of any product or service."

A team of astronomers has discovered evidence in over 150 galaxies for a long-standing alternative model of "modified gravity." New Atlas reports: [R]esearchers on the new study say they've observed the [external field effect] (EFE) in action in 153 different galaxies. The team was studying the rotation curve of the galaxies, which plots the orbital speed of stars and gas against their distance from the center of the galaxy. The researchers discovered that galaxies in strong external fields slowed down much more frequently than galaxies in weaker external fields did. That's a prediction made only by [Modified Newtonian dynamics] MOND, and the discovery surprised even the astronomers themselves.

"The external field effect on rotation curves is expected to be very tiny," says Federico Lelli, co-author of the study. "We spent months checking various systematics. In the end, it became clear we had a real, solid detection." It's an intriguing result, and it may lend some weight to the MOND hypothesis for further study. But it's important to keep in mind that so far the bulk of the evidence still points towards dark matter, and it'll take much more work to topple that hypothesis entirely. The research was published in the Astrophysical Journal.

Slashdot reader destinyland writes: The U.S. Space Force celebrated its one-year anniversary Friday with a new announcement: that members of this branch of the military will be referred to as "guardians." They're describing it as "A name chosen by space professionals, for space professionals." The site Space.com notes that the phrase is a nod to the original long-standing "Space Command" branch of the Air Force (founded in 1982), whose motto had been "Guardians of the High Frontier."

In other news, the Space Force now has one member who is actually in outer space — astronaut Michael Hopkins. Launched by SpaceX to the International Space Station in the Crew-1 capsule, Hopkins agreed to join the Space Force in a ceremony in space which a Space Force official said would "spotlight the decades-long partnership" between NASA and America's Defense Department (which oversees its armed forces).

NASA Administrator Jim Bridenstine pointed out that 60% of the astronaut corps comes from the military, according to Space.com, which adds that "At least one other member of NASA's active astronaut corps, Air Force Col. Nick Hague, has also requested to transfer to the Space Force."

hcs_$reboot shares a remarkable new theory from Larry M. Silverberg, an aerospace engineering professor at North Carolina State University (with colleague Jeffrey Eischen). They're proposing that matter is not made of particles (or even waves), as was long thought, but fragments of energy.

[W]hile the theories and math of waves and particles allow scientists to make incredibly accurate predictions about the universe, the rules break down at the largest and tiniest scales. Einstein proposed a remedy in his theory of general relativity. Using the mathematical tools available to him at the time, Einstein was able to better explain certain physical phenomena and also resolve a longstanding paradox relating to inertia and gravity. But instead of improving on particles or waves, he eliminated them as he proposed the warping of space and time.Using newer mathematical tools, my colleague and I have demonstrated a new theory that may accurately describe the universe... Instead of basing the theory on the warping of space and time, we considered that there could be a building block that is more fundamental than the particle and the wave....

Much to our surprise, we discovered that there were only a limited number of ways to describe a concentration of energy that flows. Of those, we found just one that works in accordance with our mathematical definition of flow. We named it a fragment of energy... Using the fragment of energy as a building block of matter, we then constructed the math necessary to solve physics problems... More than 100 [years] ago, Einstein had turned to two legendary problems in physics to validate general relativity: the ever-so-slight yearly shift — or precession — in Mercury's orbit, and the tiny bending of light as it passes the Sun... In both problems, we calculated the trajectories of the moving fragments and got the same answers as those predicted by the theory of general relativity. We were stunned.

Our initial work demonstrated how a new building block is capable of accurately modeling bodies from the enormous to the minuscule. Where particles and waves break down, the fragment of energy building block held strong. The fragment could be a single potentially universal building block from which to model reality mathematically — and update the way people think about the building blocks of the universe.

An anonymous reader quotes a report from Ars Technica: Brave Software, maker of the Brave Web browser, is introducing a news reader that's designed to protect user privacy by preventing parties -- both internal and third party -- from tracking the sites, articles, and story topics people view. Brave Today, as the service is called, is using technology that the company says sets it apart from news services offered by Google and Facebook. It's designed to deliver personalized news feeds in a way that leaves no trail for Brave, ISPs, and third parties to track. The new service is part of Brave's strategy of differentiating its browser as more privacy-friendly than its competitors'.

Key to Brave Today is a new content delivery network the company is unveiling. Typically, news services use a single CDN to cache content and then serve it to users. This allows the CDN or the service using it to see both the IP address and news feed of each user, and over time, that data can help services build detailed profiles of a person's interests. The Brave Today CDN takes a different approach. It's designed in a way that separates a user's IP address from the content they request. One entity offers a load-balancing service that receives TLS-encrypted traffic from the user. The load balancer then passes the traffic on to the CDN that processes the request.

The load balancer knows the user's IP address but, because the request is encrypted, has no visibility into the content the user is seeking. The CDN, meanwhile, sees only the request but has no way of knowing the IP address that's making it. Responses are delivered in reverse order. To prevent the data from being combined, Brave says that it will use one provider for load balancing and a different one for content delivery. To prevent the load-balancing provider from using the size of the requests and responses to infer the contents of the encrypted data, the service will also use a technique called padding, which adds characters to the plaintext before it's encrypted. The CDN uses several other techniques to preserve the anonymity of users. Among them: stripping out various headers that could be used to identify the person making the request. Furthermore, Brave is also taking steps to shield user information from its own employees. "... [T]he company has configured its account with the load-balancing provider to restrict access to its logging resources," reports Ars. "The load-balancing provider also doesn't provide the ability for customers to use the proxy protocol to inject the requester's IP address into outgoing requests. In case that changes, however, Brave has also entered into a contract with the load balancer that restricts access to logs or use of the protocol, even if Brave asks."

Cold Spring Harbor Laboratory (CSHL) scientists developed the world's first mobile genome sequence analyzer, a new iPhone app called iGenomics. By pairing an iPhone with a handheld DNA sequencer, users can create a mobile genetics laboratory, reminiscent of the "tricorder" featured in Star Trek. Phys.Org reports: The iGenomics app runs entirely on the iOS device, reducing the need for laptops or large equipment in the field, which is useful for pandemic and ecology workers. Aspyn Palatnick programmed iGenomics in CSHL Adjunct Associate Professor Michael Schatz's laboratory, over a period of eight years, starting when he was a 14-year-old high school intern. The iPhone app was developed to complement the tiny DNA sequencing devices being made by Oxford Nanopore.

Users can AirDrop sequencing data to each other, enabling DNA analysis in the most remote locations -- even those without internet access. iGenomics may soon even find its way into the hands of astronauts, Schatz describes: "There's a lot of interest to do DNA sequencing in space. I'm trying to see if there's a way we can get iGenomics up there. There's a lot of people that are interested to do that. It's a real testament about how it would be impossible to do, you know, any sort of analysis on regular computers. It's just impossible to bring them with you." In the journal Gigascience, Palatnick and Schatz report the iGenomics algorithm can quickly map DNA sequences of viral pathogens, such as a flu virus or Zika virus, and identify mutations important for diagnosis and treatment. They also provide an online tutorial for analyzing other viral genomes, such as from a SARS-CoV-2 patient.

"People taking a stroll on Sunday morning stumbled upon another mysterious monolith," reports Insider.com. "This one was found in a northern province of the Netherlands." The monolith was covered in ice and surrounded by a small pool of water, according to local reports. The hikers told the Dutch paper Algemeen Dagblad that they're not sure how the monolith got there. They said they found no footprints around it that would indicate someone placed it there intentionally.
And that monolith that disappeared in Atascadero, California has not-so-mysteriously re-appeared, as a group of three local artists takes credit for both creating the original and for successfully retrieving it to restore it to its former glory. "After learning of the second monolith, Travis Kenney had a thought," writes the relationship site Your Tango. "There were three monoliths in 2001: A Space Odyssey. Why not build the third themselves and make the triad complete...?"

"It was meant to be something fun, a change of pace from the kind of conversations 2020 has been plagued with — so much negativity and separation among the people in our country."
All the thanks these men really needed was delivered in the positive energy that quickly took hold of their home town. The presence of this now internationally followed mysterious object brought with it an uplifting local pride, as well as a sense of childlike wonder... The monolith's creators quietly made the hike back up to observe people's reactions throughout the day. When they arrived at the top each time, they found themselves soaking in the glow of the many smiles they encountered on faces of visitors. some of whom drove for hours to see the shining obelisk for themselves...

While you may think of these monoliths as another square on your 2020 bingo card, it's worth noting that the purpose of the monoliths in 2001: A Space Odyssey was to further the advancement of intelligent life. Cynics can say that sounds cheesy, but for the sake of full disclosure, I know McKenzie personally and can affirm without doubt or irony that they wanted nothing more than to offer their fellow humans some joyful light in these dark times.

"There was no esoteric agenda," said McKenzie.

"Our topline," added Jared Riddle, "Let's get outside and laugh."
70 miles away yet-another monolith "was discovered by campers on Saturday in San Luis Obispo County in Los Padres National Forest," reports a California newspaper. "We were super happy that someone/group went to all that work," Matt Carver wrote in a Facebook message to The Tribune. "It really did make our day to find it! I think we had huge smiles on our faces for the rest of the ride home."

The second monolith resembles the monolith in Atascadero, but the structure's top features "CAUTION" written in red and a picture of a UFO beaming in a human.
But wait! Insider.com reports that another mysterious monolith has appeared in Pittsburgh — "intentionally placed outside a candy shop by an owner who was trying to attract attention to his small business." Christopher Beers, owner of Grandpa Joe's Candy Shop, asked a friend to make the 10-foot-tall structure and placed it outside his store as a marketing ploy.

Grandpa Joe's Candy Shop shared the news using a 30-minute video on Facebook. In a Facebook post on Friday, the shop said: "Come see the Monolith before it mysteriously disappears!"
Within one day someone did in fact steal the monolith, reports the Pittsburgh Tribune-Review. But Grandpa Joe's owner Beers whipped up another one to replace it. "This one is much heavier and bolted into the ground. That's not a challenge. That's just a statement." Beers said he didn't report the theft to police because they have more important things to deal with... "That's not the story," Beers said of the theft. "The story is I built something fun and made people laugh and we put Pittsburgh on the map. I'm not worried about whoever took it."

Beers said the new monolith will stay up for a couple a days before "it'll mysteriously disappear just like all the others."
Business Insider reports that monolith jokes have now also appeared in tweets from a wide variety of brands, including Walmart, Southwest Airlines, Ocean Spray, McDonald's, Steak-umm, and MoonPie.

And meanwhile, the headline at one Denver news site reports that "Monolith mania comes to Colorado as local businesses report structures 'appearing' outside shops," citing the arrival of a monolith outside McDevitt Taco Supply and on the patio of Morrison Holiday Bar.

The Washington Post tells the remarkable story of how both Moderna's vaccine and the Pfizer/BioNTech vaccine relied on a specially designed spike protein partially created by America's Vaccine Research Center — along with messenger RNA, "a technology never before harnessed in an approved vaccine."

And also decades of path-breaking research: If, as expected in the next few weeks, regulators give those vaccines the green light, the technology and the precision approach to vaccine design could turn out to be the pandemic's silver linings: scientific breakthroughs that could begin to change the trajectory of the virus this winter and also pave the way for highly effective vaccines and treatments for other diseases. Vaccine development typically takes years, even decades. The progress of the last 11 months shifts the paradigm for what's possible, creating a new model for vaccine development and a toolset for a world that will have to fight more never-before-seen viruses in years to come.

But the pandemic wasn't a sudden eureka moment — it was a catalyst that helped ignite lines of research that had been moving forward for years, far outside the spotlight of a global crisis... Long before the pandemic, [Vaccine Research Center deputy director Barney] Graham worked with colleagues there and in academia to create a particularly accurate 3-D version of the spiky proteins that protrude from the surface of coronaviruses — an innovation that was rejected for publication by scientific journals five times because reviewers questioned its relevance. His laboratory partnered with one of the companies, Moderna, working to develop a fast and flexible vaccine technology, in the hope that science would be ready to respond when a pandemic appeared. "People hear about [vaccine progress] and think someone just thought about it that night. The amount of work — it's really a beautiful story of fundamental basic research,", said Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases [of which the center is an intramural division]...

The leading coronavirus vaccine candidates in the United States began their development not in January when a mysterious pneumonia emerged in Wuhan, China, but decades ago — with starts and stops along the way.... Unlike fields that were sparked by a single powerful insight, [Ugur Sahin, chief executive of BioNTech] said that the recent success of messenger RNA vaccines is a story of countless improvements that turned an alluring biological idea into a beneficial technology. "This is a field which benefited from hundreds of inventions," said Sahin, who noted that when he started BioNTech in 2008, he cautioned investors that the technology would not yield a product for at least a decade. He kept his word: Until the coronavirus sped things along, BioNTech projected the launch of its first commercial project in 2023...

On Jan. 13, Moderna RNA scientist Melissa Moore came into work and found her team already busy translating the stabilized spike protein into their platform. The company could start making the vaccine almost right away because of its experience manufacturing experimental cancer vaccines, which involves taking tumor samples and developing personalized vaccines in 45 days.
The Post tries to convey how meaningful this moment is for the scientists involved. Years ago one BioNTech scientist had told their spouse, "I just want to live long enough that I can help the RNA go to the patient. I want to see...at least one person would be helped with this treatment."

And when the Vaccine Research Center's deputy director finally learned how effective the Pfizer/BioNTech vaccine was, "I just let it all go.

"I was sobbing, I guess, is the term."

Long-time Slashdot reader reminds us that in 1999 scientists discovered the asteroid Ryugu flying 300 million kilometres (or 186,411,357 miles) from earth. In 2014, Japan launched a probe to collect samples from it.

Today those samples returned to earth.

The International Business Times shares pictures and report: In a streak of light across the night sky, samples collected from a distant asteroid arrived on Earth after being dropped off by Japanese space probe Hayabusa-2. Scientists hope the precious samples, which are expected to amount to no more than 1 gram of material, could help shed light on the origin of life and the formation of the universe. [That's 0.00220462262185 pounds.]

The capsule carrying samples entered the atmosphere just before 2:30 am Japan time (1730 GMT Saturday), creating a shooting-star-like fireball as it entered Earth's atmosphere. "Six years and it has finally come back to Earth," an official narrating a live broadcast of the arrival said, as images showed officials from Japan's space agency JAXA cheering and pumping their fists in excitement... The capsule was recovered in the southern Australian desert, and will now be processed before being sent to Japan...

The probe collected both surface dust and pristine material from below the surface that was stirred up by firing an "impactor" into the asteroid. The material collected from the asteroid is believed to be unchanged since the time the universe was formed...

Scientists are especially keen to discover whether the samples contain organic matter, which could have helped seed life on Earth.

"A Mysterious Object Is Hurtling Towards Earth, and Scientists Don't Know What It Is," read Newsweek's headline on Monday, describing an object projected to pass 31,605 miles from earth. (One astronomer told them that was roughly 13% of the average distance between the earth and the moon).

But then a computer model calculated its past trajectories through space, according to the director for NASA's Center for Near Earth Object Studies (CNEOS). "One of the possible paths for 2020 SO brought the object very close to Earth and the Moon in late September 1966," he said in a statement. "It was like a eureka moment when a quick check of launch dates for lunar missions showed a match with the Surveyor 2 mission."

On Wednesday NASA described how a team led by Vishnu Reddy, an associate professor/planetary scientist at the Lunar and Planetary Laboratory at the University of Arizona, tried to prove what they'd seen was a 54-year-old booster rocket: Through a series of follow up observations, Reddy and his team analyzed 2020 SO's composition using NASA's IRTF and compared the spectrum data from 2020 SO with that of 301 stainless steel, the material Centaur rocket boosters were made of in the 1960's. While not immediately a perfect match, Reddy and his team persisted, realizing the discrepancy in spectrum data could be a result of analyzing fresh steel in a lab against steel that would have been exposed to the harsh conditions of space weather for 54 years. This led Reddy and his team to do some additional investigation.

"We knew that if we wanted to compare apples to apples, we'd need to try to get spectral data from another Centaur rocket booster that had been in Earth orbit for many years to then see if it better matched 2020 SO's spectrum," said Reddy. "Because of the extreme speed at which Earth-orbiting Centaur boosters travel across the sky, we knew it would be extremely difficult to lock on with the IRTF long enough to get a solid and reliable data set."

However, on the morning of Dec. 1, Reddy and his team pulled off what they thought would be impossible. They observed another Centaur D rocket booster from 1971 launch of a communication satellite that was in Geostationary Transfer Orbit, long enough to get a good spectrum. With this new data, Reddy and his team were able to compare it against 2020 SO and found the spectra to be consistent with each another, thus definitively concluding 2020 SO to also be a Centaur rocket booster...
So what happens next? 2020 SO made its closest approach to Earth on Dec. 1, 2020 and will remain within Earth's sphere of gravitational dominance — a region in space called the "Hill Sphere" that extends roughly 930,000 miles (1.5 million kilometers) from our planet — until it escapes back into a new orbit around the Sun in March 2021.

As NASA-funded telescopes survey the skies for asteroids that could pose an impact threat to Earth, the ability to distinguish between natural and artificial objects is valuable as nations continue to explore and more artificial objects find themselves in orbit about the Sun.

Astronomers will continue to observe this particular relic from the early Space Age until it's gone.

Ben Bova "was the author of more than 120 works of science fact and fiction," according to Wikipedia, and was also a six-time winner of the Hugo Award. "He was also president of both the National Space Society and the Science Fiction Writers of America."

Tor.com reports Bova has passed "due to complications from COVID-19 and a stroke..." Born in 1932, Bova brought experience to the science fiction genre that few authors could match: he worked as a technical editor for the U.S.'s Project Vanguard, the first effort on the part of the country to launch a satellite into space in 1958. Bova went on to work as a science writer for Avco Everett Research Laboratory, which built the heat shields for the Apollo 11 module, putting man on the Moon and ensuring that science fiction would continue to increasingly define the future.

It was around that time that Bova began writing and publishing science fiction. He published his first novel, The Star Conquerors, in 1959, and followed up with dozens of others in the following years, as well as numerous short stories that appeared in publications such as Amazing Stories, Analog Science Fact and Fiction, Galaxy Magazine, The Magazine of Fantasy and Science Fiction, and others. In 1971, he took over the helm of Analog following the death of its long-running editor, John W. Campbell Jr. — a huge task, given Campbell's influence on the genre to that point... From there, he became the first editor of Omni Magazine until 1982, and consulted on television shows such as The Starlost and Land of the Lost.

While Bova wrote an episode of The Land of the Lost, his best-known works "involved plausible sciences about humanity's expansion into the universe, looking at how we might adapt to live in space..." notes Tor.

The Encyclopedia of Science Fiction argues that "the straightforwardness of Bova's agenda for humanity may mark him as a figure from an earlier era; but the arguments he laces into sometimes overloaded storylines are arguments it is important, perhaps absolutely vital, to make."

Tasmania consists of the 26th-largest island in the world and its surrounding 334 islands — an island state of Australia with a population around 540,000 people, according to Wikipedia.

Friday the Tasmanian government "declared that it has become the first Australian state, and one of just a handful of jurisdictions worldwide, to be powered entirely by renewable electricity," according to one news report: Tasmania joins the Australian Capital Territory as the only two Australian jurisdictions sourcing all of their electricity from renewable energy sources, and places Tasmania alongside countries like Scotland, Iceland and Costa Rica which have also made the transition to 100 per cent renewable electricity. The milestone was welcomed by environmental groups, saying that it was another example of what is being achieved by state and territory governments that are stepping in to show leadership on energy policy in a vacuum left by ongoing conflict both between and within political parties at a federal level...

Tasmanian energy minister Guy Barnett added that the Tasmanian government would continue to support an expansion of the state's renewable energy capabilities, as the state looks to grow its role as a supplier of zero emissions energy to both mainland Australia and of green hydrogen into international export markets. "But there is more to do, which is why we have set a target to double our renewable generation to a global-leading target of 200 per cent of our current needs by 2040 — which we recently passed into law following the passing of legislation through both Houses of Parliament," Barnett added.

RockDoctor (Slashdot reader #15,477) is a professional geologist, and asks: Did anyone feel a sudden wind through their hair at about 17:19+00:00 on Monday, particularly in the mid Pacific? No?

Good. Nobody else did. Nobody noticed the asteroid whizzing past just above the Earth's atmosphere (for certain values of "above" including "not very far" and "373km above ground"). That's the closest natural body (i.e., not a spacecraft) documented in near-Earth space which hasn't actually hit the thick-enough parts of the atmosphere to glow, fragment, make sonic booms and dent automobiles.

So, we dodged another bullet, and no windows were broken. This one probably wouldn't have done significant damage even if it had touched down in fire and fury — it was about half the size of the 2013 Chelyabinsk meteor, and so around one eighth of the energy (and potential damage). Everyone can go back to bed and sleep easy. Right?

But one tiny thing to disturb your sleep : we didn't see this one coming until after it had gone past us. Nor did we see it in it's close approaches on 2014-10-26.60152 or 2017-11-06.57008. And with another 39 projected Earth approaches before the next turn-of-century, it's pretty obvious that one day this is going to hit us.

For those who know what an MPEC is [a Minor Planet Electronic Circular], Bill Grey has written up one of his "pseudo-MPECs" with links to other work on this object here, while the actual discovery record is here. The object has been given a formal name of 2020 VT4 unless the discoverers at the ATLAS Mauna Loa Observatory choose to give it a name ("COVID", or "hair-parter", or "hats-off", perhaps. Or just "Rupert".)

Wikipedia has caught up too.

There will be another close-pass, and an impact, one day. This doesn't change the odds of that happening (probability 1), but it might make it feel a little more immediate.

Reuters reports: David Prowse, the English actor who played Darth Vader in the original Star Wars films, has died aged 85, his management company said on Sunday...

The champion weightlifter-turned-actor starred as the body, but not the voice, of one of cinema's best-known villains. Director George Lucas opted to dub another voice onto Prowse's portrayal of the towering, masked antagonist Darth Vader in "Star Wars", "The Empire Strikes Back" and "Return of the Jedi".
More from the Los Angeles Times: Born in Bristol, southwest England, in 1935, Prowse represented England in weightlifting at the Commonwealth Games in the 1950s before breaking into movies with roles that emphasized his commanding size, including Frankenstein's monster in a pair of horror films [and also in the 1967 comedy Casino Royale].

Director George Lucas saw Prowse in a small part in "A Clockwork Orange" and asked the 6-foot-6-inch actor to audition for the villainous Vader or the Wookiee Chewbacca in "Star Wars." Prowse later told the BBC he chose Darth Vader because "you always remember the bad guys."

Physically, Prowse was perfect for the part. His lilting English West Country accent was considered less ideal, and his lines were dubbed by actor James Earl Jones. Prowse was also known to a generation of British children as the Green Cross Code Man, a superhero in a series of road safety advertisements.
An anonymous reader writes: In 2011 he authored an autobiography titled Straight from the Force's Mouth (with a foreword by bodybuilder/Incredible Hulk actor Lou Ferrigno), and his differences with Lucasfilm are chronicled in a 2015 documentary about his career titled I Am Your Father. (You can watch its trailer on its page on Amazon Prime, though the full documentary is currently listed as "unavailable.")
Wikipedia lists some of Prose's other roles, including:

• A Minotaur in the Doctor Who serial The Time Monster
• The Black Knight in the Terry Gilliam film Jabberwocky
• A small role as Hotblack Desiato's bodyguard in the 1981 BBC TV adaptation of The Hitchhiker's Guide to the Galaxy.

BeerFartMoron shares a report from CBS News: China launched its most ambitious moon mission yet Monday: a robotic spacecraft expected to land on the lunar surface by the end of the week. The spacecraft is expected to collect about four pounds of rock and soil samples, and return them to Earth next month for laboratory analysis. If successful, the Chang'e 5 mission will make China only the third nation, after the United States and the former Soviet Union, to bring moon rocks back to Earth. It will also be the first to attempt the feat since Russia's Luna 24 in 1976.

The 8,335-pound Chang'e 5 spacecraft, named after the mythical Chinese goddess of the moon, is made up of four major components: a lunar orbiter, a sample return craft, a lander carrying science instruments and sample collection equipment, and a small ascent vehicle mounted atop the lander to carry the collected surface samples back up to orbit. The Chang'e 5 lander features multiple cameras, a spectrometer to assess the composition of the soil near the spacecraft and a ground-penetrating radar. A robot arm is equipped with a percussive drill and scoop to pick up excavated rock and soil. Working by remote control from Earth, engineers will use the arm to move collected samples up to the ascent vehicle, which then will blast off, rendezvous with the Chang'e 5 orbiter and transfer the sample to the return craft for the trip back to Earth. Landing in Inner Mongolia is expected around December 16. From there, the samples will be transferred to specially equipped laboratories for analysis.

Rudra Saraswat is the creator of the Ubuntu Unity distro (which uses the Unity interface in place of Ubuntu's GNOME shell).

But this week they released Ubuntu Web Remix, "a privacy-focused, open source alternative to Google Chrome OS/Chromium OS" using Firefox instead of Google Chrome/Chromium. Liliputing reports: If the name didn't give it away, this operating system is based on Ubuntu, but it's designed to offer a Chrome OS-like experience thanks to a simplified user interface and a set of pre-installed apps including the Firefox web browser, some web apps from /e/, and Anbox, a tool that allows you to run Android apps in Linux...

You don't get the long battery life, cloud backup, and many other features that make Chromebooks different from other laptops (especially other cheap laptops). But if you're looking for a simple, web-centric operating system that isn't made by a corporate giant? Then I guess it's nice to have the option.
Rudra Saraswat writes: An easy web-app (wapp) format has been created to package web-apps for the desktop. You can now create your own web apps using web technologies, package them for the desktop and install them easily.

An experimental wapp store can be found at store.ubuntuweb.co, for distributing web apps. Developers and packagers can do pull requests at gitlab.com/ubuntu-web/ubuntu-web.gitlab.io to contribute wapps.

78-year-old filmmaker Werner Herzog shared some interesting thoughts before the release of his new documentary on asteroids, Fireball: Visitors From Darker Worlds now available on Apple TV+.

From Herzog's new interview with the science site inverse: Herzog tells Inverse he's less concerned than ever that a meteorite will destroy the Earth, but that doesn't mean we shouldn't still be worried about our own extinction. "It may be 100 million years to go until then," Herzog says, before adding, "within the next thousand years, we may have done such stupid things that we are not around anymore to contemplate it...."

There's a theory that all life on Earth came from a meteorite. Do you think that's possible...?

[I]f you expand the question, it wouldn't surprise me if we found life somewhere outside of our solar system, or even within our solar system, because we share the same chemistry with the universe. We share the same physics with the universe. And we share the same history with the universe. So with trillions and trillions and trillions of stars out there, it's highly likely that somewhere there are some forms of life. Probably not as good and interesting as in movies. We can be pretty certain there are no creatures out there like in Star Wars...

Have you heard the theory that we're living inside a simulation?

Yes, but I don't buy it. Because when I kick a soccer ball from the penalty spot, I know this is for real. If the goalie saves it, oh shit, this is for real.
He also discusses the 1998 asteroid disaster film Deep Impact and his own appearance on Rick and Morty, as well as part on The Mandalorian — and the experience of watching its premiere with 1,000 hardcore Star Wars fans. ("It was unbelievable. The first credit appears and there's a shout of joy that you cannot describe... It's evident Star Wars is a new mythology for our times, whether you like it or not.")

But though Herzog's films "often feature ambitious protagonists with impossible dreams, people with unique talents in obscure fields, or individuals who are in conflict with nature," according to Wikipedia, Herzog insists to Inverse that Elon Musk's plan to build a city on Mars is a "mistake."
In a blistering criticism, Herzog describes the idea as "an obscenity," and says humans should "not be like the locusts...."

Herzog is not opposed to going to Mars at all. In fact, the German filmmaker would "love to go [to Mars] with a camera with scientists." But the long-term vision of a Mars city is a "mistake." Herzog's main concern is that humanity should "rather look to keep our planet habitable," instead of trying to colonize another one.

In short, Mars is not a livable place. There is no liquid water at the surface, or air to breathe. Solar wind means inhabitants would be "fried like in a microwave," Herzog says.

Joe Morrison: The first time I spoke with Jennings Anderson, I couldn't believe what he was telling me. I mean that genuinely -- I did not believe him. He was a little incredulous about it himself. I felt like he was sharing an important secret with me that the world didn't yet know. The open secret Jennings filled me in on is that OpenStreetMap (OSM) is now at the center of an unholy alliance of the world's largest and wealthiest technology companies. The most valuable companies in the world are treating OSM as critical infrastructure for some of the most-used software ever written. The four companies in the inner circle -- Facebook, Apple, Amazon, and Microsoft -- have a combined market capitalization of over six trillion dollars. In almost every other setting, they are mortal enemies fighting expensive digital wars of attrition. Yet they now find themselves eagerly investing in and collaborating on OSM at an unprecedented scale (more on the scale later). What likely started as a conversation in a British pub between grad students in 2004 has spiraled out of control into an invaluable, strategic, voluntarily-maintained data asset the wealthiest companies in the world can't afford to replicate.

I will admit that I used to think of OSM as little more than a virtuous hobby for over-educated Europeans living abroad -- a cutesy internet collectivist experiment somewhere on the spectrum between eBird and Linux. It's most commonly summarized with a variant of this analogy: OSM is to an atlas as Wikipedia is to an encyclopedia. OSM acolytes hate this comparison in the much same way baseball players resent when people describe the sport as "cricket for fat people." While vaguely truthful, it doesn't quite get to the spirit of the thing. OSM is incomparable. Over 1.5M individuals have contributed data to it. It averages 4.5M changes per day. The stats page on the OSM Wiki is a collection of hockey sticks. [...]

Last week, Apple released macOS Big Sur and the rollout was anything but smooth. The mass upgrade caused the Apple servers responsible for checking if a user opens an app not downloaded from the App Store to slow to a crawl. Apple eventually fixed the problem, "but concerns about paralyzed Macs were soon replaced by an even bigger worry -- the vast amount of personal data Apple, and possibly others, can glean from Macs performing certificate checks each time a user opens an app that didn't come from the App Store," writes Dan Goodin via Ars Technica. From the report: Before Apple allows an app into the App Store, it must first pass a review that vets its security. Users can configure the macOS feature known as Gatekeeper to allow only these approved apps, or they can choose a setting that also allows the installation of third-party apps, as long as these apps are signed with a developer certificate issued by Apple. To make sure the certificate hasn't been revoked, macOS uses OCSP -- short for the industry standard Online Certificate Status Protocol -- to check its validity. [...] Somehow, the mass number of people upgrading to Big Sur on Thursday seems to have caused the servers at ocsp.apple.com to become overloaded but not fall over completely. The server couldn't provide the all clear, but it also didn't return an error that would trigger the soft fail. The result was huge numbers of Mac users left in limbo.

The post Your Computer Isn't Yours was one of the catalysts for the mass concern. It noted that the simple HTML get-requests performed by OCSP were unencrypted. That meant that not only was Apple able to build profiles based on our minute-by-minute Mac usage, but so could ISPs or anyone else who could view traffic passing over the network. (To prevent falling into an infinite authentication loop, virtually all OCSP traffic is unencrypted, although responses are digitally signed.) Fortunately, less alarmist posts like this one provided more helpful background. The hashes being transmitted weren't unique to the app itself but rather the Apple-issued developer certificate. That still allowed people to infer when an app such as Tor, Signal, Firefox, or Thunderbird was being used, but it was still less granular than many people first assumed. The larger point was that, in most respects, the data collection by ocsp.apple.com wasn't much different from the information that already gets transmitted in real time through OCSP every time we visit a website. [...] In short, though, the takeaway was the same: the potential loss of privacy from OCSP is a trade-off we make in an effort to check the validity of the certificate authenticating a website we want to visit or a piece of software we want to install.

In an attempt to further assure Mac users, Apple on Monday published this post. It explains what the company does and doesn't do with the information collected through Gatekeeper and a separate feature known as notarization, which checks the security even of non-App Store apps. The post went on to say that in the next year, Apple will provide a new protocol to check if developer certificates have been revoked, provide "strong protections against server failure," and present a new OS setting for users who want to opt out of all of this. [...] People who don't trust OCSP checks for Mac apps can turn them off by editing the Mac hosts file. Everyone else can move along.