Across history, ancient civilizations crafted prototypes for many of the modern mechanisms that have become integral to ...

The earth's magnetic field is of more than passing interest to science. The field is generated by a dynamo located in the outer core, thus measuring the dynamics of the magnetic field allows us to ...

Scientists do believe the Moon had a magnetic field billions of years ago that was roughly comparable in strength to Earth’s, generated by a now-extinct molten core dynamo. This ancient field likely ...

A perfectly preserved ancient tree fossil offered scientists an unprecedented view into a moment 42,000 years ago when the Earth’s magnetic field went haywire.

Compass needles. Using the Atacama Large Millimeter/Submillimeter Array (ALMA) in Chile, the team detected thermal emissions from dust grains around 9io9. Dust grains are not perfectly spherical, so ...