USGS and NASA have recently teamed up to create one of the most complete databases of magnetic properties of Earth’s rocks ever assembled. Satellite data of Earth's magnetic field combined with rock ...

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. When you purchase through links on our site, we ...

Some lunar rocks have left scientists puzzled for decades. Despite the Moon having no global magnetic field today, samples collected during NASA’s Apollo missions and data from orbiting spacecraft ...

Unlike Earth, the Moon doesn't have much of a magnetic field – and yet, a strange pile of rocks on the far side seems mysteriously magnetized. A new study suggests that a major cataclysm, over and ...

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 3.7 ...

Discovered in 1852, the main-belt asteroid Psyche is unique in that it is believed to be the exposed core of an ancient protoplanet that never completely formed, or whose rocky outer layers were ...

Surrounding Earth is a powerful magnetic field created by swirling liquid iron in the planet’s core. Earth’s magnetic field may be nearly as old as the Earth itself – and stands in stark contrast to ...

The moon isn't large enough to have a magnetic field, like the one surrounding the Earth, but rock samples returned to Earth by NASA astronauts 50 years ago suggested they were formed in the presence ...