Because he wanted to find Pluto.
What do the moons of Pluto look like?
Pluto is 7.2 billion kilometres from the earth.
Pluto is 7.5 billion kilometres from Earth.
Pluto is smaller than the Earth's moon.
Pluto may have 10 more undiscovered moons.
Pluto has five known satellites.
Pluto is a“dwarf planet”.
What does the surface of Pluto look like?
Pluto is a lot smaller than the Moon.
The Pluto File is missing.
Pluto is your expert subject.
I think you would like Pluto.
I'll take the Pluto File, please.
Man, Pluto has to be a planet.
Russia is larger than Pluto.
and the 2:3 resonance between Pluto and Neptune.
Draw Pluto in the sky map?
calling him Orcus, or Pluto.
Pluto's newly discovered moons are officially named Nix
and Hydra.
Obviously, I know that Pluto lost its planetary standing.
Pluto's newly discovered moons were officially
named Nix & Hydra.
Pluto's recently discovered moons were officially named Nix
and Hydra.
One day on Pluto equals six days on Earth.
How do solar wind particles interact with Pluto's atmosphere?