WASHINGTON — A year from now, the U.S. Navy hopes to launch a pair of small satellites that are able to harvest electrons from space and use them and the Earth’s magnetic field as a propulsion system.

The explanation for this magnetic chaos, scientists now believe, lies near the center of these distant planets. Where Earth has molten iron churning in its outer core, Neptune and Uranus have ...

Water doesn’t behave the same way in a glass as it does as ice in your freezer. When water is heated to several thousand degrees Celsius, it is also placed under pressures many millions of times ...

A nuclear fusion experiment at the University of Wisconsin-Madison has set a record for the strongest steady magnetic field confining a plasma, ushering in new hope that forthcoming demonstration ...

Earth's magnetic field, a familiar directional indicator over long distances, is routinely probed in applications ranging from geology to archaeology. Now it has provided the basis for a technique ...