Could humans spread Earth life beyond our planet? Astrobiologists explain where extremophiles might survive and why the risks ...

Thus far, our search for extraterrestrial life points toward Clarke’s former point, suggesting that our little blue dot is ...

The Pegasus barge is a large cargo ship — it's a whopping 310 feet (94.4 meters) long — designed to carry the massive core stage of NASA's SLS megarocket. As the agency marches forward with its plans ...

In June 1947, Kenneth Arnold saw something strange in the sky. What he saw sparked a national UFO craze-but it was far from ...

From insects to the moon, people have mistaken very Earthly phenomena for UFOs many times.

On a clear night, the sky may seem peaceful and empty. Yet beyond the stars visible to our eyes lies a universe so vast that it is difficult to imagine. Our gal ...

Want to know all the new movies and shows on Netflix, Prime Video, HBO Max and other streaming services? Then read Us' ...

Today, UFO sightings are—if not yet run-of-the-mill—actually relatively common topics of discussion, at least among certain circles. You more likely than not have seen videos and photos of UFOs. It ...

Four wildly different machines reveal where American performance is now and where it’s headed next.

Space: 1999 may have offered audiences a glimpse into the future, but its premise was rooted in the past — specifically, in a ...