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

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

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

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

"Without Mars, Earth's orbit would be missing major climate cycles. What would humans and other animals even look like if ...

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

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

Saturn reigns supreme when it comes to the number of moons orbiting any solar system planet. Including the 128 ...

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

How can magnetic fields help determine the habitability of exoplanets? This is what a recent study published in Nature ...

Small but mighty, the red planet — our celestial neighbor — has made Earth’s climate what it is today. Mars’ gravitational ...

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