Mars craters pop in these new images showcasing the diversity of impacts across the red planet. ESA's ExoMars mission took these images. See them here!
Two teams of astronomers in Europe say they have found 60 Dyson sphere candidates. Are they alien megastructures or a previously unknown natural phenomenon?
M87's jet - a black-hole-powerd stream of sub-atomic particles - streaming outward some 8,000 light-years, traveling at near-light-speed. It's corkscrew-shaped!
NASA's Webb telescope has mapped the weather on WASP-43 b, a hot Jupiter exoplanet 283 light-years away. It's blistering hot with 5,000-mile-per-hour winds.
NASA's Webb telescope looked at the sub-Neptune exoplanet K2-18 b. It found methane, carbon dioxide, a possible ocean, and even ... maybe ... a biosignature.
New experiments show that methane on Mars, in Gale crater, may seep out of the ground when hard crusts of perchlorate salt temporarily warm up and weaken.