Is Triton Hiding an Underground Ocean?
Voyager 2 mosaic of Neptune’s largest moon, Triton (NASA)
At 1,680 miles (2,700 km) across, the frigid and wrinkled Triton is Neptune’s largest moon and the seventh largest in the Solar System. It orbits the planet backwards – that is, in the opposite direction that Neptune rotates – and is the only large moon to do so, leading astronomers to believe that Triton is actually a captured Kuiper Belt Object that fell into orbit around Neptune at some point in our solar system’s nearly 4.7-billion-year history.
Briefly visited by Voyager 2 in late August 1989, Triton was found to have a curiously mottled and rather reflective surface nearly half-covered with a bumpy “cantaloupe terrain” and a crust made up of mostly water ice, wrapped around a dense core of metallic rock. But researchers from the University of Maryland are suggesting that between the ice and rock may lie a hidden ocean of water, kept liquid despite estimated temperatures of -97°C (-143°F), making Triton yet another moon that could have a subsurface sea.
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© Jason Major for Universe Today, 2012. | Permalink | No comment |
Post tags: ammonia, life, Neptune, ocean, Solar System, triton, University of Maryland, Voyager, water
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2012-09-07 00:22:01
Source: http://www.universetoday.com/97239/is-triton-hiding-an-underground-ocean/
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