The "black moon," a rare phenomenon that occurs during a new moon phase of the lunar cycle, will occur this weekend. But don't get your hopes up too much, scientists say, because it will be ...

Two colossal plasma fountains tore away from the sun in a breathtaking double blast, one of the most impressive eruptions this solar cycle.

SpaceX could soon launch its third Falcon 9 rocket of the month from California, but it may be hard to see this time soaring over Arizona.

Aliens may have lived in our solar system, according to new research. NASA scientists have unveiled evidence that the dwarf ...

The discovery of Ceres shows that even small dwarf planets, not just large planets or moons, may have once supported life, opening new avenues for exploration ...