Greek Mythology | Blogs
Thursday, August 4, 2011
Big News for a Dwarf Planet!
In June, astronomers discovered a fourth moon around Pluto by using the Hubble Space Telescope. This moon is tiny, only 8 to 21 miles in diameter. Pluto’s other three moons are larger. Charon is 648 miles in diameter and Nix and Hydra are each 20 to 70 miles in diameter. Scientists believe that Pluto’s moons were created by a collision long ago between Pluto and another object of a similar size. After the crash, some of the pieces became Pluto’s moons.
Astronomers have not yet given this new moon a permanent name and right now it is referred to as P4 (for Pluto’s fourth moon). Pluto and its other moons are all...
