Mars is widely known for its iconic rusty red color — many people even refer to it as just the "Red Planet" — but new ...

Mercury, Venus, Mars, Jupiter, Saturn, Neptune and Uranus could be visible, but not all can be seen by the naked eye.

A new study suggests the iron oxide responsible for the red planet's distinctive hue is ferrihydrite, pointing to the bygone ...

NEW YORK (AP) — Seven planets grace the sky at the end of February in what’s known as a planetary parade, though some will be ...

By combining observations from space and experiments on Earth, scientists rethink the red planet's history and why it's red.

WASHINGTON — Stargazers will have a special chance to see seven planets align in the night sky this week as Mercury joins Venus, Mars, Jupiter, Saturn, Uranus and Neptune in a planetary parade.

All seven of Earth's neighboring planets will be visible as the sun sets this week. Here's everything to know about the event ...

A polar bear fetching a stick and other jaw-dropping moments from this year's World Nature Photography Awards.