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

A European-Japanese spacecraft has beamed back some of the best close-up photos yet of Mercury's north pole as part of only the second human survey of our solar system's innermost planet.

The pups from Team Fluff weren't the only winners. See freeze-frame highlights from the 21st edition of the Puppy Bowl.

If planets had social media accounts, the solar system would showcase a frenzy of unique personalities. Mercury tweets at ...

A European-Japanese spacecraft has beamed back some of the best close-up photos yet of Mercury's north pole as part of only the second human survey of our solar system's innermost planet. The ...

Worth trying an astro-pic, too. Mercury is low in the southeast sky about an hour before sunrise and binoculars will help immensely to find the bright yellowish planet. It transitions to the ...

While we’ve enjoyed a six-planet alignment since mid-January, Mercury joins the celestial ... Share your best photos and experiences with us at #WTHRPlanetAlignment.

New photos of Mercury's mysterious north pole reveal a glimpse of the permanently dark, frigid craters that may hold ice dozens of feet thick, even though Mercury is the closest planet to the sun.

A spacecraft has beamed back some of the best close-up photos yet of ... miles (295 kilometers) above Mercury's night side before passing directly over the planet's north pole.