ESA's Mars Express orbiter captured footage of the Mars' moon Deimos pass in front of Ganymede, Europa, Jupiter, Io and ...

This gas giant has some really unique features that make it stand out. If you’re curious about space, learning a few things ...

Jupiter isn’t alone in this category; Saturn, Uranus, and Neptune are also gas giants, though Uranus and Neptune are often ...

Two icy moons of Jupiter, though neighboring and of similar size, exhibit radically different internal structures. A new ...

Life outside the Earth is one of the biggest "what if" in history, but NASA is trying to put a end to the discussion - or add ...