Mercury joins the night sky to complete a 7-planet alignment just after sunset for the end of February. Saturn leaves our ...

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

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

Up to seven planets from our solar system could be on display simultaneously, although spotting two of them might require a bit more effort. Over the next month, Mars, Venus, Jupiter, and Saturn ...

February will be an awe-inspiring month for astronomy enthusiasts who will be able to the see the solar system's planets ...

The formation of our solar system from a singular nebula raises an intriguing question: why did each planet develop with a ...

A U.S. scientist searching for a civilization across 7 Earth clones circling the red dwarf star TRAPPIST-1 says its own alien ...

While claims of a “rare alignment” are overblown, you can still see up to six planets in the night sky this weekend. Here's ...

February brings a rare planetary parade, with five bright planets in clear view and a special alignment of Mercury and Saturn ...

A planet-size object that possibly once visited the solar system may have permanently changed our cosmic neighborhood by warping the orbits of the four outer planets, a new study suggests.

For much of January and February, you have the chance to see six planets in our solar system after dark, although two — Uranus and Neptune — will be hard to see without a telescope or high-powered ...