Mysterious world beyond Pluto may have an atmosphere, astronomers say

If confirmed, the rock would become just the second world past Neptune in our solar system to host an atmosphere.
Smithsonian Magazine

Could Pluto Once Again Be Considered a Planet? New Remarks From NASA’s Administrator Highlight an Enduring Debate Among Scientists

Two decades ago, the International Astronomical Union—which defines and names celestial bodies—redefined the criteria for ...

New debate over Pluto: Is the dwarf set to become a planet again?

Almost 20 years after the debate appeared to be settled, Pluto is back in the spotlight. View on euronews ...

Is Pluto a planet? NASA's chief says it should be

Is Pluto a planet? At a U.S. Senate committee hearing this week, NASA's chief shared his thoughts on the decades-long debate.
Yahoo

Pluto's 'extreme cousin' is a dwarf planet found at the far reaches of our solar system

Add Yahoo as a preferred source to see more of our stories on Google. Earth has a newly-discovered neighbor in the solar system. But the heavenly body – possibly a dwarf planet à la Pluto – isn't a ...

White dwarf spotted feeding on Pluto-like remains in distant system

Hubble spots white dwarf star 'snacking' on chunk of Pluto-like object. The NASA/ESA Hubble Space Telescope has spotted a ...
WBAL-TV

This Day in History: Pluto loses planet status, demoted to dwarf planet in 2006

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 controversy ...