Where did the moon's magnetism go? Scientists have puzzled over this question for decades, ever since orbiting spacecraft picked up signs of a high magnetic field in lunar surface rocks. The moon ...

As the rocks' electrons settled back, they assumed a new orientation, in line with the momentary high magnetic field. "It's as if you throw a 52-card deck in the air, in a magnetic field, and each ...

Modern low-power solutions to computer memory rely heavily on the manipulation of the magnetic properties of materials.

These rocks offer evidence that Earth had a strong magnetic field 3.7 billion years ago, but scientists aren't sure where that field could've come from.

And there are traces of ancient magnetism found on Mars and Earth’s moon. But there are also meteorites — small space rocks that have fallen to Earth — that contain hints of magnetism. Scientists say ...

NASA's Apollo missions brought back moon rock samples for scientists to study. We've learned a great deal over the ensuing decades, but one enduring mystery remains. Many of those lunar samples ...

Rocks can become magnetized from the shock of an impact, a mechanism some scientists have proposed to explain the magnetization of lunar samples. But recent paleomagnetic analyses of moon rocks, as ...

The resulting lopsided magnetic field would match the imprint we see today, said the study's lead author, Chi Yan, a research associate at the University of Texas Institute for Geophysics, part of the ...

Geologists at MIT and Oxford University have found ancient rocks in Greenland that bear the oldest remnants of Earth’s early magnetic field. The researchers determined that the rocks are about 3 ...

Where did the moon's magnetism go? Scientists have puzzled over this question for decades, ever since orbiting spacecraft picked up signs of a high magnetic field in lunar surface rocks. The moon ...

Where did the moon’s magnetism go? Scientists have puzzled over this question for decades, ever since orbiting spacecraft picked up signs of a high magnetic field in lunar surface rocks. The ...