Astronomers discovered that C/2014 UN271, a massive comet more than 10 times larger than any known comet, is emitting jets of ...

Comet Nishimura came into NASA's STEREO-A spacecraft's field of view. The solar wind was interacting with the tail of the comet in the footage. Credit: NASA/STEREO/Karl Battams | edited by Space.com's ...

Watch Comet 96P/Macholz brighten as it flies by the sun in these time-lapses captured by the ESA/NASA Solar and Heliospheric ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. On June 27, 1997, NASA's NEAR Shoemaker spacecraft flew by an asteroid named 253 Mathilde ...

On July 4, 2005, a probe was released from NASA's Deep Impact spacecraft, which captured images of Comet Tempel 1 before, during and after its collision with the probe. Watch. Stardust Swoops by ...