"Kepler 78b, a planet some 400 light-years away, is like hell on earth. Astronomers described it on Wednesday as the first Earth-size planet that seems to be made of the same mixture of rock and iron as Earth, and that orbits a star similar to our sun. At that close proximity, the surface of Kepler 78b is infernally hot: 3,500 to 5,000 degrees Fahrenheit, or ... “Exoplanets are just surprising us with their diversity,” said Dimitar D. Sasselov, a professor of astronomy at Harvard and a member of Dr. Pepe’s team, using the name for planets outside our solar system.
Read Full Article, NY Times, http://www.nytimes.com/2013/10/31/science/space/astronomers-find-earthlike-planet-but-its-infernally-hot.html
CFA Press Release: http://www.cfa.harvard.edu/news/2013-25