Discover the only planet in our solar system that rotates clockwise. Learn why this 'rebel' planet spins backwards, how a ...

Venus was once thought to host lush landscapes hidden beneath its clouds. Through decades of observation and interplanetary ...

Journey from the searing surface of Mercury to the inferno of Venus and witness the breathtaking power of the Sun itself.

Starting Jan. 21, Canadians can see a rare celestial event as six planets line up in the evening sky, mostly visible to the ...

Four of the planets, which are Mercury, Venus, Jupiter and Saturn, are bright enough to be spotted with the naked eye in ...

Japan has quietly closed the book on Akatsuki, a spacecraft that spent more time around Venus than anyone first expected. The ...

After a year featuring a brilliant green comet, a rare eclipse at sunrise, perfect views of the planets, a traveler from deep ...

In astronomy, an occultation is when a celestial body or object — like the moon or a planet — passes in front of a distant ...

A pull in the right direction ...

Planetary rings explained: composition, formation theories, and a comparison of Saturn, Jupiter, Uranus, and Neptune’s rings.

Deep beneath the surface of distant exoplanets known as super-Earths, oceans of molten rock may be doing something ...

MAVEN was built to last in orbit until 2030 — that's not looking likely anymore.