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Posts Tagged "trans-Neptunian"

Life, Unbounded

New Horizons Mission Catches Pluto And Charon Waltzing

Pluto and Charon in their orbits, taken July 2014 (Credit: NASA / JHUAPL / SwRI)

After a ten year journey, NASA’s New Horizons mission is still 420 million kilometers from the Pluto system – but that’s close enough to begin to see the orbital dance of an icy world and its major moon. This far out from the Sun it’s easier for planetary objects to hold onto satellites, so even [...]

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Life, Unbounded

Greeks, Trojans, and a Temporary Companion for Uranus

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A telescopic survey looking for trans-Neptunian objects has chanced across a 37 mile wide chunk of rock and ice that instead moves around the sun in the same orbit as Uranus, just further ahead of the planet. This discovery is notable because such objects cannot stay in place for long – unlike planets such as [...]

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Life, Unbounded

Help Name Two Of Pluto’s Moons

Pluto's currently known moons (Credit: NASA/HST)

Far from the Sun planetary bodies can hold onto many more moons. The latest count for Pluto is five satellites, and the most recent two need names. Back in 2011 and 2012 it was announced that Hubble Space Telescope observations of the Pluto system had spied first one and then another new candidate moon. For [...]

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