The team still can't confidently rule out the existence of Europa's water vapor, especially as similar plumes have been more ...

Neptune has a complicated life story, and its moon Nereid might be the only one left standing from the planet’s ...

Ganymede and Europa transit Jupiter tonight, while Io disappears in an occultation. West Coast observers can catch a double ...

Neptune’s third-largest moon, Nereid, could be an intact survivor from the planet’s original satellite system, upending ...

Looking back at 14 years of Hubble telescope data for Jupiter's moon Europa has given Southwest Research Institute (SwRI) ...

Over the next few evenings, Luna will slowly climb through the twilight sky and drift past Venus and Jupiter, as both ...

Are you familiar with the constellation Crater the Cup? If not, don’t worry — you’re about to spot it tonight. This mid-sized constellation, measuring 53rd in size among the 88 official constellations ...

The extended mission will continue until the spacecraft dies. Though Juno will eventually fall toward Jupiter as its trajectory degrades, NASA says it poses no risk of crashing into or contaminating ...

Bossco CC license via Flick. Jupiter and Venus will appear in a line with the waning crescent Moon in mid-May, providing a perfect opportunity for some quality stargazing. Jupiter, which has been ...

NASA's Juno spacecraft has snuck a peek at one of Jupiter's largest inner moons. During a close flyby, the spacecraft got a look at Jupiter's moon Thebe from just 3,100 miles (5,000 kilometers) away.