At around 10:00 p.m. local time on Sunday (Nov. 9), if you look low toward the east-northeast sky, you will see a waning ...

Many historians think that Nov. 1, known for the festival of Samhain, was the ancient Celtic New Year’s Day. Samhain, Old Irish for “summer’s end,” was a harvest festival that may have contributed to ...

This first-ever complete map of Jupiter's volcanic moon Io released on March 19, 2012, was created using data and images from NASA's Galileo spacecraft, (which studied Jupiter and its moons between ...

On 9, Jupiter will appear near the Moon in the night sky, offering stargazers a stunning view and chance to observe Jupiter’s moons.

Through a vast ocean, Jupiter's moon Europa is an exciting target for research in the search for life. Two space probes are ...

Jupiter's moon Io stands alone among the solar system's moons. It has more than 400 active volcanoes, and its surface is home ...