Learn how Hubble is measuring the expansion rate of the Universe in this new explainer from NASA's Goddard Space Flight ...

Freelance writer Amanda C. Kooser covers gadgets and tech news with a twist for CNET. When not wallowing in weird gear and iPad apps for cats, she can be found tinkering with her 1956 DeSoto. NASA ...

NASA has released new video footage of DART's collision with an asteroid. The footage was taken back in September. NASA says the video was created using still images from the leadup and aftermath of ...

The Hubble Space Telescope has discovered a galaxy in the the Perseus galaxy cluster that is "composed of 99% dark matter," ...

Add Yahoo as a preferred source to see more of our stories on Google. Galaxy merger Arp-Madore 417-391 is on display in this new image captured by the Hubble Space Telescope's Advanced Camera for ...

video: "The Incredible Time Machine" is the fifth video in a series celebrating Hubble's 25th anniversary this month. The video explains how upgrades in 2002 and 2009 helped Hubble look at objects ...