http://www.huffingtonpost.com/entry/earth-planet-proxima-b_us_57bc6f68e4b03d51368ad735?section=&
An Earth-like planet is orbiting the sun closest to ours, scientists announced Wednesday.
The planet, called “Proxima b,” orbits a star called “Proxima Centauri” and has a temperature that would allow liquid water to exist there, according to a statement released Wednesday by the European Southern Observatory. That means the world is possibly habitable, but scientists don’t know yet whether there’s anything living there.
“This rocky world is a little more massive than the Earth and is the closest exoplanet to us ― and it may also be the closest possible abode for life outside the solar system,” ESO said.
Proxima Centauri, a red dwarf star, lies just 4.25 light-years away from Earth. While that’s pretty far away by astronomical distances, it’s just a drop in the cosmic bucket. Other Earth-like exoplanets that have been discovered are much farther away from Earth, which makes the revelation of Proxima b more exciting.