Dozens of NASA's spaceflight missions that launched from Florida could be in jeopardy under a budget proposal from the Trump ...

Dozens of NASA's missions to explore the cosmos could be in jeopardy under a budget proposal from the Trump administration.

Europa, one of Jupiter’s largest moons, is a frozen world with a subsurface ocean. It intrigues scientists as a possible home ...

Saturn's moon Titan has an atmosphere that spins with a tilt completely separate from the moon's surface rotation.

Jupiter may have once been more than twice its current size, with a magnetic field 50 times stronger, say scientists who ...

A recent study found that Jupiter was once twice the size that it is now, making it big enough to swallow up 2,000 Earths.

The puzzling behavior of Titan's atmosphere has been revealed. The team has shown that the thick, hazy atmosphere of Saturn's largest moon doesn't spin in line with its surface, but instead wobbles ...

Discovered in 1846, Triton is the largest moon of Neptune - but it ... it one of the most fascinating and mysterious moons in our solar system. Pentagon Launches Probe Including Polygraphs ...

If you find Jupiter, you’ll likely see four small dots to the side of the gas giant: they are the Galilean moons, four of the 95 natural satellites around the Solar System’s largest planet.

For a very brief period — perhaps only hours — they danced as if arm in arm before gently separating, a grand do-si-do that resulted in Pluto and its quintet of moons orbiting the sun together ...

Akin to Saturn, it is believed that Rhea may also have a thin ring around it.

And it's that elliptical orbit that's one of the driving forces behind the level of volcanic activity on the moon. NARRATOR: Jupiter is the largest planet in our solar system, and its ...