Soon the spacecraft will reach Mars to get a push in its journey to the unknown. NASA says Clipper will make its closest ...

How many moons does Jupiter have? Scientists have discovered dozens of them, but the answer may be more complicated than it ...

In crafting a piece for the Europa Clipper launch, the U.S. Poet Laureate focused her affections toward Earth itself.

But the sturdy plate — inscribed with far more than the poignant words of Limón — also has a twin that sits on our planet.

NASA's Europa Clipper mission has launched to study Jupiter's icy moon Europa, which may harbor a potentially habitable ocean ...