The DESI experiment shocked cosmologists with a hint that dark energy varies over time. Now, with more data, the conclusions hold up.

The largest-ever three-dimensional map of the cosmos, plotting out some 15 million celestial objects, could help reveal the ultimate fate of the universe. Astrophysicists know that the universe is ...

Since it launched its full-scale invasion, Russia has captured the Zaporizhzhya nuclear power plant and the now-destroyed ...

Antarctica’s total ice volume is now estimated at 27.17 million cubic kilometers (6.52 million cubic miles). The ice sheet ...

In the weeks since his inauguration, Donald Trump has issued a series of executive orders intended to undermine progressive law and, in some cases, the foundations of constitutional democracy itself.