One U.S. service member and three defense contractors were killed when a plane contracted by the U.S. military crashed in a ...

U.S. Indo-Pacific Command says that one U.S. service member and three defense contractors were killed when a plane contracted ...

It took 250 years for the Laschamps reversal to take place and it stayed in the unusual orientation for about 440 years. At most, Earth's magnetic field may have remained at 25 percent of its current ...