Scientists have long opposed polar geoengineering. Some now believe it will be necessary.

Watch Alcaraz vs. Djokovic live for free with this trick. Here's how to stream the Australian Open tennis final on a free ...

Apple TV's criminally overlooked sci-fi series, For All Mankind, surges on streaming charts after the exciting news about its ...

The CW's ambitious "Crisis on Infinite Earths" crossover stretches across five different shows, making it a challenge to know ...

Over 50 years after astronauts last went to the moon, a new crew is set to make history — but don't expect another lunar landing just yet.

Seven American spacefarers were killed in a tragic event 40 years ago today that has become widely known as the Challenger ...

The U.S. is taking a minority stake in an Oklahoma rare earth miner, the latest government investment in the sector as it ...

But US President Donald Trump’s announcement Saturday of sanctions against several European countries that reject any US claim to Greenland, a Danish territory, was one of those moments.

After circling the globe and stepping foot on all seven continents, you start to notice patterns. Not the kind you get from textbooks or documentaries, but the fuzzy, emotional, life-changing kind ...

Four space station fliers undocked and plunged back to Earth, safely splashing down in the Pacific Ocean early Thursday off the Southern California coast six days after NASA ordered them home early ...

The four astronauts of Crew-11 have safely returned to Earth after their mission was cut short. An unspecified medical issue with one crew member prompted the first-ever medical evacuation from the ...

The crew undocked from the station Wednesday at 5:20 p.m. EST as the ISS and capsule flew 260 miles south of Australia. The splashdown at 3:41 a.m. EST Thursday beneath a canopy of parachutes marks ...