Leading astronomers declare that Pluto is no longer a planet, shrinking the solar system from nine planets to eight. Pluto was discovered in 1930. It lost its planetary status when the International ...

WASHINGTON (AP) — There’s a chaotic dance going on at the far end of our solar system, involving Pluto and five of its closest friends, a new study finds. Hubble Space Telescope images of Pluto, its ...

Pluto’s back, baby! Seventeen years after it was demoted from planet to dwarf planet, it is time for Pluto to retake its former title…at least according to our hosts, Chelsea Whyte and Leah Crane. In ...

In 2006, updated research led to Pluto being controversially demoted to dwarf planet status by the International Astronomical Union. The reasoning was that Pluto's location in the far-flung ...

Once the quirky underdog of our solar system, Pluto held planetary status until 2006, when it got a cosmic demotion that still stings space fans. Discovered in 1930, Pluto was the ninth planet for ...

NASA's New Horizons spacecraft captured this high-resolution enhanced color view of Pluto that is inserted beneath the Short Wave logo. The image combines blue, red and infrared images taken by the ...

A team of scientists wants Pluto classified as a planet again — along with dozens of similar bodies in the solar system and any found around distant stars. The call goes against a controversial ...

Pluto behaves less like a comet than expected and somewhat more like a planet like Mars or Venus in the way it interacts with the solar wind, a continuous stream of charged particles from the sun.