tank girl
New Member
They're calling it a "twin earth" but its surface temperature is -220 c...however - its the closest thing yet found in the skies that resembles our humble abode.
The new planet is five times the size of the Earth and is considered a "low-mass" planet like the Earth.
* About 170 new planets have been discovered since 1995, but this is the most Earth-like.
* It orbits a red star, a fifth of the size of the sun, near the centre of the Milky Way galaxy.
* The planet's surface is believed to be rock or ice and the surface temperature is estimated to be about -220C.
* It would take a beam of light, travelling at 300,000km a second, 25,000 years to travel from Earth to the newly discovered planet.
source

