Astronomers can detect the molecules of distant exoplanets when they pass in front of their stars. These molecules might help reveal signatures of alien life.
Astronomers have spotted a beautiful shock wave around a dead star 730 light-years away. And according to all known mechanisms, this shock wave shouldn't exist.
Astronomers have found the earliest, hottest galaxy cluster gas yet. This scorching gas between galaxies is hotter than expected for so early in the universe.
Astronomers studying one of the strongest bright blue cosmic outbursts believe they occur in a binary star system where a black hole tears its companion apart.
A recurring nova - long overdue - in Corona Borealis - nicknamed Blaze Star - should appear bright enough to see with the unaided eye sometime in 2026.
Are you hoping to get some great pics of the April 8 total solar eclipse? Here are 5 tips from NASA to help you capture some memories of this precious event.
Members of the EarthSky community - including scientists, as well as science and nature writers from across the globe - weigh in on what's important to them.