NASA’s Hubble and Spitzer telescopes captured NGC 6240, two galaxies colliding in a rare pre-merger stage, surrounded by foreground stars. NGC 2467, discovered in the 19th century, is a huge ...

This week is the best time in May to view the night sky. Here's everything you can see during May's dark skies, from an upside-down bear to some of the oldest stars in the universe.

NASA's Perseverance rover captured Deimos, the smaller of Mars' two moons, shining in the pre-dawn sky over the Red Planet on ...

Scientists looked at Jupiter’s massive auroras using the James Webb and Hubble Space Telescopes — and found a mystery they ...

Webb is the largest, most complex observatory ever launched into space, having undergone six months of calibrations. This ...