Scientists have called for Pluto to be classified as a planet again following a new study into planetary science. Pluto was controversially relegated to the status of “dwarf planet” in 2006 by the ...

"Pluto was found really close to where Lowell thought a planet should be, but it's also a great example of serendipity in science," Schindler said. "When Lowell was doing his work, there was an ...

The icy process may be present on other worlds. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Pluto is geologically alive. Bizarre geometric ...

The science payload for NASA’s New Horizons mission completed its last major preparations for flight last week. The probe will be the first to visit Pluto and its moon, Charon. The compact New ...

Pluto may have been demoted to non-planet status, but it still commands a court of five moons, as is fitting for the king of darkness; after all, Pluto is the Roman equivalent of the Greek God Hades.

Pluto and its largest moon, Charon, whirl around each other in images that NASA released August 8. When NASA’s New Horizons spacecraft snapped these photos last month, the probe was roughly 10 times ...

In the hope of ending years of wrangling, a committee of astronomers and historians has proposed a new definition of the word "planet" that would expand at a stroke the family of planets from nine to ...

Jackson Ryan was CNET's science editor, and a multiple award-winning one at that. Earlier, he'd been a scientist, but he realized he wasn't very happy sitting at a lab bench all day. Science writing, ...

Pluto's atmosphere is going through a strange transformation, scientists are finding. The icy dwarf planet, which lies over 3 billion miles (4.8 billion kilometers) away from Earth in the Kuiper Belt, ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. On Saturn's largest moon, water and oil would mix — opening the door to exotic chemistry in our ...

Astronomers recently discovered two more moons orbiting Pluto in addition to its already-discovered moon, Charon. Madeleine Brand talks with Ira Flatow, host of NPR's Talk of the Nation Science Friday ...