A team of researchers U.S. and French discovered oneplanet twice larger than the Earth and composed mainly of diamonds .
The planet rock , named “55 Cancri e”, orbits around a star similar to the Sun in the constellation Cancer, and moves so quickly that a year lasts just 18 hours there.
The radius of this planet is twice that of the Earth , but is much denser and its mass is eight times higher. It is also very hot, with surface temperatures up to 1648 degrees Celsius.
“The surface of this planet is probably covered with graphite and diamond , instead of water and granite, “said Nikku Madhusudhan, Yale researcher whose findings will be published in the Astrophysical Journal Letters.
The study , conducted by Olivier Mousis, Institute de Recherche Astrophysique et Planetologie in Toulouse, France, estimates that at least one third of the mass of the object, a mass equivalent to about three Earths could be diamond .
While already identified other planets of diamonds , this is the first thing seen orbiting around a star similar to the Sun
“This is our first glimpse of a rocky world with a fundamentally different chemistry of theEarth “, Madhusudhan said, adding that the discovery of this planet is rich in carbon that can no longer be assumed that the planets are rocky chemical components, interior , or biologies atmospheres similar to those of the Earth .