9 years ago
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Pluto's moons tumble in orbit, Hubble measurements reveal
Pluto’s moons have been tracked closely for the first time, showing that they tumble unpredictably rather than keeping one face fixed on their host planet. Astronomers also observed that Pluto, whose status was downgraded to a dwarf planet in 2006, might be better regarded as a binary dwarf as it is locked in orbit with its largest moon, called Charon. The twin system creates an imbalanced and shifting gravitational field, which sends the tiny outer moons spinning...
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http://www.theguardian.com
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Im looking forward to some hi-res photos!