Old Apollo rocks are providing a fresh take on the moon's magnetic field. The lunar magnetic field is currently weak or even nonexistent, but cranked up to superstrength for short snippets of time more than a billion years ago.
CAPE CANAVERAL, Fla. (AP) — Lunar rocks collected by Apollo astronauts more than half a century ago are providing a fresh take on the moon’s mysterious magnetic field, scientists reported Wednesday.
Samples to be retrieved by future moonwalkers in NA... [2468 chars]