Pluto gets 'demoted' again.
After being dethroned by the solar system's planet in 2006 and classified as a dwarf planet, Pluto was once again downgraded to a lower rank by the dwarf planet Eris.
After being " dethroned " by the solar system planet in 2006 and placed in the group of dwarf planets, Pluto was once again downgraded to a lower rank by the dwarf planet Eris.
Thanks to Keck observatory and Hubble telescope, they measured the movement of Dysmonia and from this information deduced Eris's mass was 27% larger than the mass of Pluto.
The Earth has 360 times the mass of Eris.
WITH
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- Video: Skyscraper-like high mountain reveals the past of Pluto
- Unexpected discovery: Pluto is capable of emitting X-rays
- The jagged surface of Pluto
- Tomorrow the New Horizons spacecraft approaches Pluto
- Pluto can form from one billion comets
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