For the 11th year running, cities worldwide will turn their lights off Saturday to mark Earth Hour in a global call to action on climate change.
A suspected meteor lit up the skies above Pakistan's mountainous north late Wednesday, officials said, with panicked residents reporting a mysterious light whizzing past and the sound of multiple, powerful blasts.
The Copernicus Sentinel-2A satellite takes us over Kourou in French Guiana, with the main town of the same name visible in the lower right.
Astronomers based at the University of Sheffield have found evidence that stars are ripped apart by supermassive black holes 100 times more often than previously thought.
Thousands of schoolchildren in Kenya are getting a rare opportunity to look at the stars.
An Ariane 5, operated by Arianespace, has delivered the Sky Brasil-1 and Telkom-3S telecom satellites into their planned orbits.
A long time ago, in a galaxy far away, a supergiant red star ended its life in a spectacular explosion known as a supernova.
A meteor over Lake Michigan lit up the sky Monday morning across several states in the Midwest.
An international team led by researchers from the Instituto de Astrofísica de Canarias (IAC) and the University of La Laguna (ULL) has discovered one of the brightest "non-active" galaxies in the early universe. Finding ...
Careful sleuthing through decade-old images has enabled ESA's asteroid team to decide that a newly discovered space rock poses little threat of hitting Earth any time soon.