The King of the Planets teams up with an exceedingly narrow crescent moon for the last time this year in the evening sky on May 27.

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

Or, if you aren’t an early bird, you can catch Europa transiting at 10:18 p.m. EST Dec. 5. It can be hard to distinguish the moon once it passes in front of Jupiter, but you can watch the ...

The Moon passes 5° north of Jupiter at 9 A.M. EDT. Just six percent illuminated by this evening, you can try to spot the young crescent Moon hanging above the gas giant in the western sky after ...

Europa, the superstar among Jupiter’s many moons One of Jupiter’s 95 known moons, Europa is almost the size of our own moon. It's encased in an ice sheet estimated to be 10 miles to 15 miles ...

The acid yellow moon Io that orbits Jupiter may be less than 30% the size of Earth, ... and its elliptical orbit whips it around Jupiter once every 42.5 hours.

Europa, one of the four large moons of Jupiter first seen by Galileo 414 years ago, may have a deep, salty, global ocean hidden beneath a thick crust of ice. Where there is water, there might be life.

Jupiter’s icy moon Europa is suspected of harboring a vast ocean that may be capable of supporting life. The $5-billion Europa Clipper spacecraft is the largest interplanetary probe ever built ...