A new study of gamma-ray light may lead to evidence of dark matter, a hypothetical blanket term for whatever must make up most of the material universe. Using publicly available data from NASA's…

Right now a doomed gas cloud is edging ever closer to the supermassive black hole at the center of our Milky Way galaxy. These black holes feed on gas and dust all the time, but astronomers rarely…

In 2005, NASA's Cassini spacecraft sent pictures back to Earth depicting an icy Saturnian moon spewing water vapor and ice from fractures, known as "tiger stripes," in its frozen surface. It was big…

The centimeter-sized fragments and smaller particles that make up the regolith — the layer of loose, unconsolidated rock and dust — of small asteroids is formed by temperature cycling that breaks…

The amount of water present in the moon may have been overestimated by scientists studying the mineral apatite, according to a new computer model created to accurately predict how apatite would have…

Exploding stars, random impacts involving comets and meteorites, and even near misses between two bodies can create regions of great heat and high pressure and researchers have developed a method for…

The heart becomes more spherical when exposed to long periods of microgravity in space, according to a study of 12 astronauts. The research has implications if any progress toward a trip to Mars ever…

We know the Voyager spacecraft has left the solar system. What no one can really say is when. Boundaries in space are entirely human vanities, there is no 'Now leaving the Local System' sign after…

Astronomers have announced the surprise discovery that the asteroid Chariklo is surrounded by two dense and narrow rings, by far the smallest object to have rings.  The rings of Saturn are, of…

A decades old space mystery has been solved by an international team of astronomers who investigated hot, young, white dwarfs — the super-dense remains of Sun-like stars that ran out of fuel and…