When astronomers first discovered 55 Cancri E back in 2004, they found a massive 'super-Earth' planet, twice the diameter of Earth and over eight times Earth's mass. It orbits so close to its Sun-like star, 55 Cancri A — around 25 times closer than Mercury is to our Sun — that a year there would be only 18 Earth-hours long, and its surface temperature would be a nearly 2000 degrees C.
Friday, October 12, 2012
Searing ‘super-Earth’ 55 Cancri E may be a diamond planet
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