You'll probably hear a lot about a 'supermoon' over the next few months. This is not a term that astronomers use, but here are some facts about what will actually happen.
Cassini has once again turned to Enceladus, the enigmatic moon of Saturn.
Volcanic 'fire fountains' erupting from the lunar surface, similar to what occurs in Iceland today, most likely were fueled by carbon monoxide gas, a new study shows.
Finally, we have proof of the moon's 'noble' heritage!
An astrophotographer spotted a beautifully-formed solar prominence that looks like a giant version of the famous Parisian landmark.
After nearly 20 years gazing at the sun, the SOHO spacecraft is about to spy its 3,000th comet.
As we rapidly approach Cassini's thrilling final stage of its mission, the list of 'final' events is gradually shrinking. Next on the NASA spacecraft's final list is Dione -- coming within 295 miles of the Saturn moon's surface on Monday.
The newly discovered planet called 51 Eridani B is about twice the mass of Jupiter, and orbits a star about 97 light-years from Earth.
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