Space.comTopic:
Latest Discoveries About Pluto, the Dwarf Planet
Pluto, originally considered the ninth planet, was recently classified as a dwarf planet and is the least massive planet in the solar system.
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The Hubble Space Telescope has discovered a tiny new moon around Pluto.
It has been five years since Nix and Hydra, Pluto's tiny moons, were named. Mysteries still abound with the pair.
Poisonous gas has been discovered in the atmosphere of the dwarf planet Pluto.
NASA's New Horizons probe has reached the orbit of Uranus on its way to Pluto.
A NASA Pluto probe may be slumbering at the moment, but it's still tearing through space at a blistering pace, closing in on the orbit of Uranus.
Planetary scientist Alan Stern has been fighting for Pluto's planethood ever since the icy body was demoted to "dwarf planet" in 2006. He lays out the case for Pluto at SPACE.com.
The astronomical community lost two longtime, eminent members this week when Brian Marsden and Allan Sandage passed away.
Now that Pluto looks to have regained the title of largest object in the outer solar system, should astronomers consider calling it a full-fledged planet again?
Mike Brown is best known as the man who killed Pluto. The Caltech astronomer led the team that discovered Eris, leading to Pluto's demotion to "dwarf planet."
Pluto was originally considered the ninth planet in Earth’s solar system, but was recently classified as a dwarf planet. Pluto’s orbit takes it through the Kuiper Belt.
The dwarf planet Eris, once thought to be the largest body in the outer solar system, may actually be smaller than Pluto, observations suggest.
The dwarf planet Eris has been found to have a surface much like Pluto's and still harbors surprises five years after its discovery.
The frozen surface of the dwarf planet Eris looks a lot like that of its smaller neighbor Pluto, new research has found.
Stargazers can see the two brightest dwarf planets, formerly the asteroid Ceres and the planet Pluto, in June.
Mysterious bright and dark spots mottling the surface of Pluto could be tar and frost, scientists say.
Rocket-launch industry executives, engineers and related enthusiasts at the 17th annual meeting of the Space Access Society appear ready to depend on commercial services.
Jupiter, the largest planet in the solar system, is about to welcome a robotic visitor in the form of NASA’s New Horizons probe on Wednesday.
Pluto was discovered 80 years ago today, and astronomers are still arguing over what it is.
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