NASA's Chandra X-ray Observatory has spotted something startling. It's identified the smallest supermassive black hole ever detect in the center of a galaxy.
A comet is making quite the show before reaching its closest point to the sun. The Comet 67P/Churyumov-Gerasimenko has blasted out a spectacular jet, which has been captured by the Rosetta spacecraft.
Have you ever wanted to see what Earth looks like from space? You, too, can be an astronaut--with the power of virtual reality.
The internet is buzzing about a strange impact captured by NASA's Curiosity rover on Mars. It appears as if the rover has spotted what appears to be a ghostly woman on the Red Planet. In this case, though, the image may be nothing more than an illusion.
Scientists have discovered an unusual new exoplanet that orbits two stars instead of one. The new finding is only the 10th "circumbinary" planet that's been discovered by NASA's Kepler Mission.
The universe is slowly dying as stars wink out over time. After studying more than 200,000 galaxies, researchers have confirmed that the energy produced in a section of the universe today is only about a half of what it was two billion years ago.
It turns out that spaceflight may actually increase the risk of irritable bowel syndrome (IBS).
NASA astronauts on the International Space Station (ISS) have grown the first ever vegetables in space-and are about to eat them.
Get ready, sky watchers. The Perseid meteor shower this week is set to impress. A new moon should make the skies perfect for watching the display in utter darkness.
Scientists have uncovered evidence of an ancient lake that likely represents some of the last potentially habitable surface water ever to exist on the Red Planet.
Want to explore Mars? You may be able to with some new NASA simulations. The space agency has released two new online tools that will open the mysterious terrain of the Red planet to a new generation of explorers.