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Computer models of COROT-7b, a planet orbiting an orange dwarf star in the constellation Monoceros, 490 light years away, suggest that the world has a surface temperature hot enough to boil rock. The research, by scientists at Washington University in St Louis, Missouri, conjures up a vision of hell. COROT-7b, a rocky planet around twice the size of the Earth but of similar density, is only 1.6 million miles from its star: 23 times closer than the innermost planet in our solar system, Mercury, is to the Sun. This proximity means that the planet is gravitationally locked, like the Moon to the Earth, so that one side of the planet always faces the star. So while its far side is in perpetual freezing darkness – around 50 degrees above absolute zero – its near side is a balmy 2,800C. While scientists are not sure of the exact chemical makeup of the planet, the sheer temperatures mean that whatever it is, the rocky ground will boil, forming a mineral atmosphere. And when cold fronts move in, small pebbles will condense and form rain and hail, just like water on Earth. Professor Bruce Fegley, one of the team behind the research, said: "The only atmosphere this object has is produced from vapor arising from hot molten silicates in a lava lake or lava ocean.
"As you go higher the atmosphere gets cooler and eventually you get saturated with different types of 'rock' the way you get saturated with water in the atmosphere of Earth. "But instead of a water cloud forming and then raining water droplets, you get a 'rock cloud' forming and it starts raining out little pebbles of different types of rock." Prof Fegley and his associate Laura Schaefer carried out the research using the modelling programme MAGMA. They had previously used the software to model the volcanoes on Jupiter’s moon Io. COROT-7b was discovered by the European Space Agency space telescope COROT in February, but the Washington University researchers were the first to model its atmosphere.
Originally posted by debunky
reply to post by prevenge
We already are in the proximity of a dwarf star. The sun is a dwarf star.
Originally posted by InfaRedMan
reply to post by prevenge
Please prevenge... let's not degrade this thread into folly & superstitious talk of Nibiru. We have Skunkworks for that kind of junk mate! This thread is far more interesting than that.