Though the planets are always “aligned,” seeing more than four in the sky is more uncommon. February’s lineup is a chance to ...

Loki Patera is 202 kilometres (126 mi) in diameter, covers 20,000 sq km (7,700 sq mi), and was the largest volcanic feature found on Io until these new observations revealed the hot spot in the south ...

Six planets are parading across the sky, appearing as some of the night's brightest stars. A few easy tips can help you ...

While this planetary alignment isn't particularly rare, it is relatively uncommon. Spotting two, three, or even four bright planets at once is not unusual, but the chance to see all five together ...

Venus, Jupiter, and Mars dominate the sky. Catch your last views of Saturn as early in the month, the Moon passes in front of ...

NASA's Juno spacecraft has spotted the most powerful volcanic eruption ever seen on the solar system's most volcanic body, ...

With frigid temperatures and dangerously cold wind chills, you may want to wait a few more days to check them out. Don't ...

Stargazers will be treated to a dazzling six-planet "alignment" this January.

People in the northern hemisphere will be able to see Saturn, Mercury, Neptune, Venus, Uranus, Jupiter and Mars during the planetary parade. The next full moon will happen on Feb. 12. Known as the ...

Jupiter’s moon Io is the most volcanically active world in the Solar System. The gravitational tug-of-war between Jupiter and ...