First Measurement of Magnetic Field In Earth's Core 34
An anonymous reader writes "A University of California, Berkeley, geophysicist has made the first-ever measurement of the strength of the magnetic field inside Earth's core, 1,800 miles underground. The magnetic field strength is 25 Gauss, or 50 times stronger than the magnetic field at the surface that makes compass needles align north-south. Though this number is in the middle of the range geophysicists predict, it puts constraints on the identity of the heat sources in the core that keep the internal dynamo running to maintain this magnetic field."
So, is our goose cooked? (Score:3, Interesting)
Did they find out when the magnetic dynamo will cool down, running out of steam, leaving the Earth naked to the overly-spicy energy of space; baking our DNA into wispy little snippets of death-inducing mutations; sending all us land-dwelling mammals into a deep, eternal nap; with our limbs and genitals joining a new journey as worm nutrients?
Or, are they still working on that question?