Earth has a newly-discovered neighbor in the solar system. But the heavenly body – possibly a dwarf planet à la Pluto – isn't a frequent visitor. Located beyond Neptune, its extreme orbit ...

The heart's brightness arises from sunlight reflection, while red patches, formed by tholins, showcase Pluto's atmospheric ...

These icy bodies orbit the sun just like the major planets, yet they follow their own rules, often traveling along elongated ...

The science community may be ecstatic over the discovery of a ninth planet, but the former planet "Pluto" had a totally different reaction. Hours after scientists announced there's solid evidence of ...

Aug. 15, 2006 — -- When Clyde Tombaugh discovered Pluto in 1930, he made a mess of the solar system. Pluto was too small, too distant, and of the wrong makeup to qualify as a planet, many ...

Pluto, once considered the ninth planet, was reclassified as a dwarf planet in 2006 because it shares its orbital path with other objects. Despite its demotion, this distant world continues to ...

When NASA's New Horizons spacecraft sped by Pluto in 2015, it revealed an incredible world of ice and haze carved by various geological processes — hinting that an ocean may have played a role in the ...

Frankly, we don’t keep up much with Pluto and its status as a planet or non-planet. It’s kind of like when, as a young altar boy, the Catholic Church demoted a bunch of saints. We just rolled with the ...

To boldly go where we were not too long ago. Legendary actor William Shatner wants President Trump to restore Pluto to greatness as scientists claim to have found a “new” ninth planet. “So there’s a ...