A newly-released image taken during New Horizons' flyby of Pluto shows the back lit dwarf planet in a detailed new light. The photo, captured just minutes after the spacecraft's closest approach with ...
Twenty years ago, Pluto lost its planet status, a decision that still sparks debate. Today, NASA's new chief, Jared Isaacman, wants to restore its former glory. During a hearing before the ...
If confirmed, the rock would become just the second world past Neptune in our solar system to host an atmosphere.
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 ...
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 ...
A new dwarf planet, discovered beyond Neptune and described as Pluto's 'cousin,' could void the hypothesis of a Planet X in our solar system.