Almost 10 years ago, a NASA spacecraft was able to take several photos of Pluto, known for decades as a planet before it was ...

Suddenly, in photos taken six days apart in January ... Over millions of years, that atmosphere escaped into space. Pluto is the only place in the solar system where we can study something ...

"Pluto is showing us a diversity of landforms and complexity of processes that rival anything we've seen in the solar system." As the craft continues to transmit photos back to Earth, scientists ...

NASA said it’s the largest known glacier in our solar system. Images of Pluto’s icy heart have appeared on screensavers and T-shirts and have been shared by news media worldwide. Even without ...

Saturn is practically a solar system unto itself. Pluto may not count as a planet ... Cassini Imaging Team, SSI, JPL, ESA, NASA New images from the Cassini spacecraft display the slightly ...

A powerful new observatory is the best hope yet for finding the elusive Planet 9, a large planet that some scientists say is ...

The gas giants outside our solar system are not capable of hosting extraterrestrial life, but do offer clues in a lingering mystery about how distant planets form, researchers said.

The Pluto fly-by caps a half-century of solar-system exploration that has yielded ... decencies of civilization — taking close-up pictures and chemical readings of a mysterious world nine ...

Images from New Horizons revealed another unexpected feature ... than we once thought - scientists predict that there are hundreds of objects like Pluto in our solar system. But if an unremarkable icy ...