By JIM PURCELL
NASA's New Horizons mission to the dwarf planet Pluto has provided scientific mysteries recently that were entirely unexpected.
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| Clyde W. Tombaugh |
The video has some important new evidence with it. But, for those who are not familiar with Pluto, here is some background.
Pluto was discovered on Feb. 18, 1930 by astronomer Clyde W. Tombaugh. It is a dwarf planet with temperatures as low as -229 degrees Celsius. Upon its discovery, Pluto was considered the ninth planet from the Sun. After 1992, however, its "planethood" was questioned by the International Astronomical Union, as the definition of what the IAU believes is a planet excludes Pluto.
As a result of the IAU ruling, Pluto is now in the "dwarf planet" category.
Pluto has five moons: Charon, Styx, Nix, Kerberos and Hydra.
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