Jupiter's icy moon, Ganymede, and our own planet Earth may have more in common than you might have thought at first.
In this case, a certain galaxy is both red and dead. Astronomers have discovered the carbon monoxide in a galaxy located about 12 billion light-years from Earth and have found that it's running out of gas, slowly pushing it toward its own destruction.
Mercury, one of the closest planets to our sun, has long puzzled scientists with its unusual metal-rich composition. Now, researchers have discovered the possible origins of Mercury.
NASA scientists have found out that friction may play a larger role than expected; it could be key to survival for distant Earth-sized planets traveling in dangerous orbits.
Astronomers have discovered that the supermassive black holes at the cores of some galaxies drive massive outflows of molecular hydrogen gas, which can directly impact the galaxies' evolution.
Scientists have made a new, surprising discovery. They've found that the properties of the early universe were determined by the smallest galaxies.
The High Energy Stereoscopic System, HESS-II, has detected its first-ever pulsar.
NASA has caught comet Pan-STARRS in action. The NEOWISE mission captured a series of pictures of the comet, also known as C/2012 K1, as it swept across the sky in May 2014.
A newly discovered world in a binary start system about 3,000 light-years from our own planet may just expand scientists' views of where Earth-like and potentially habitable planets can form.
Finding out exactly how old a star might be has long been a challenge for astronomers. Now, though, researchers may have found a way to do so.
Is it too hot or too cold? For two "Goldilocks" planets, the conditions seemed just right; unfortunately, though, these planets don't exist.