A truly extraordinary story is going viral online involving interstellar object 3I/ATLAS, space, mystery and possible extraterrestrial life. This is due to a few viral tweets that have caused intense ...

A comet from another star system is putting on a show that looks uncannily like a heartbeat, with bright jets of gas and dust ...

A comet hurtling through the solar system from interstellar space is exactly what it appears to be, NASA officials said Wednesday, moving to quash a wave of online speculation. At a news conference, ...

NASA’s Europa Clipper spacecraft has observed interstellar comet 3I/ATLAS, collecting rare data as the ancient object made ...

The universe can be beautiful, as Chandra and other observatories reveal. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. NASA has unveiled a ...