Moon's magnetic material may have come from an asteroid
Friday, March 9, 2012 - 20:30
in Astronomy & Space
Researchers believe that a massive asteroid, whose impact left a 1,200-mile-wide crater, may explain why parts of the moon's surface have a magnetic field but others don't. A giant crater at the moon's south pole may hold the answer to a long-standing mystery about why portions of the lunar crust have a magnetic field and other parts don't.