A NASA space telescope has just confirmed the discovery of a rocky alien world just 21 light-years from Earth, making it the nearest rocky exoplanet to our solar system yet found.
The exoplanet (a label given to any planet outside the solar system) is called HD 219134b, and was first detected by scientists using the Galileo National Telescope in the Canary Islands
NASA’s Spitzer Space Telescope did follow-up observations confirming its existence
See also: What Is an Exoplanet?
Although it is our nearest rocky neighbor, it likely can’t support life, according to NASA. The world orbits too close to its star to be habitable; it only takes about three days for the planet to orbit its star Read more…