On the 95th anniversary of its discovery, Pluto remains one of the most beloved and enigmatic worlds in our solar system, ...

The giant-impact hypothesis posits that billions of years ago a Mars-sized body named Theia collided with the early Earth.

Their discovery showed that even tucked away in our innards – in the walls of our stomachs, subjected to vinegar-like pH ...

Saturn, Venus, Neptune, Uranus, Jupiter, Mars and Mercury will be visible in an uncommon planetary alignment this month.

Feb. 18 marks the 95th anniversary of the discovery of our outermost planet-not-planet. Here's what to know about the short ...

Venus is now at its almost unbelievably brightest at a marvelous time when many other (though less radiant) planets and ...

At the very beginning of its history, Earth was dry. How did it become a blue planet? A new theory could provide an answer.

Make time soon to head outside after the sun sets and study the sky. Five of the brightest planets — Venus, Jupiter, Mars, ...

That’s quite a big gap, as it turns out. It covers fields from gigantic bodies like the Sun and Earth, as well as those ...

Mars, Venus, Jupiter and Saturn should be visible to the naked eye, but with a telescope you can spot Neptune and Uranus.

Five years ago, NASA provided an updated version of the Pale Blue Dot. JPL engineer Kevin M Gill reprocessed the image with ...