Pluto and the more distant dwarf planets fail to meet this criterion. If Pluto were to keep its planetary status, those dwarf planets would also need to be classified planets. While astronomers ...

Back in 2006 it was actually thought to be larger than Pluto and it had been thought that Eris could officially get planet-status at the IAU meeting. However, with several other candidate objects ...

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 ...

Pluto may have lost its status as a full-fledged planet in 2006, but that doesn't mean it's a joke of a world this April Fools' Day and the folks behind Pluto TV want to make that clear.

Today, Feb. 18 is Pluto Day. You may ask yourself why Pluto has its own day since it is no longer considered a planet of our solar system. Well, according to a new survey, sixty-six percent of ...

For Pluto TV, it’s everything. Next Monday, April 1, the free streaming service from Paramount, will be staging a rally to push for its namesake’s planetary status to be restored on its 10 ...

On Aug. 24, 2006, the International Astronomical Union voted to strictly define a planet, which ultimately downgraded Pluto from the ninth planet from the sun to a dwarf planet — causing ...

It’s a sloppy definition,” he says. His stance is that the one sticking point for those who wanted to strip Pluto of its planetary status — the “clear” orbit requirement — isn’t ...

Long believed to be the ninth planet in our solar system, Pluto's planetary status was downgraded to a dwarf planet by the International Astronomical Union in 2006. However, this reclassification ...

The discovery of a nearly Pluto-sized object way out beyond the known worlds could jeopardize the status of Pluto as a planet, adding fresh fuel to an argument among astronomers that is likely to ...