Scientists prove Einstein's theory after observing the collision of black holes.
Winners of the Insight Astronomy Photographer of the Year 2015 contest captured auroras, galaxies and grand skyscapes.
Every year, Science magazine challenges PhD students to explain the topic of their thesis in the form of dance. This year's finalists are in.
Hundreds of galaxies lurking near the Milky Way could help explain an anomaly known as the Great Attractor.
NASA releases a video guide to a solar system phenomenon that hasn't happened in more than 10 years.
"Lo and Behold: Reveries of the Connected World" is a compelling new documentary, but is Herzog, who admits to being uncomfortable with cell phones, the right man to explore the Digital Age?
Commentary: Thirty years ago, seven astronauts lost their lives in front of a global TV audience, including millions of schoolchildren. The event affected one of those kids in profound and lasting ways.
Our complex universe gets to show off in a spectacular series of winning photos from the Insight Astronomy Photographer of the Year contest.
Haven't been finding enough alien life lately? Maybe Harvard can help with a new course that combines astronomy and biology to examine how we look for life on other planets.
Technically Incorrect: In a piece of must-see television, designer Isaac Mizrahi and presenter Shawn Killinger break off from clothes to debate astronomy.