The only other pulsar known to have ever approached Vela’s energy level was the Crab Pulsar, situated over 6,000 light-years from Earth — and even that constellation maxed out at just 1 ...

NASA's ISS-mounted X-ray telescope NICER has weighed and measured the closest pulsar to Earth. The neutron star PSR J0437 spins 174 times a second and has a mass of 1.4 suns.

That sloshing around can influence the speed of the Earth’s spin, ABC reported. Some scientists think this could be the beginning of a new period of shorter days, Interesting Engineering reported.

The Earth's spin is really starting to pick up speed. As CBS News reports , June 29 was the fastest day in recorded history, clocking in at 1.59 milliseconds shorter than the average 24 hours we ...

A constellation of satellites orbiting 250 miles above Earth’s surface shows how solar and wind have taken off in recent years: Here’s what renewable energy sites looked like eight years ago ...