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 ...

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

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

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

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

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.

WASHINGTON — Stargazers will have a special chance to see seven planets align in the night sky this week as Mercury joins ...