They may not have found aliens, yet, but astronomers have announced the discovery of seven Earth-sized exoplanets orbiting a dwarf star, named TRAPPIST-1, just 40 light years away.
Data recorded from NASA’s Spitzer infra-red telescope revealed that three of the planets are firmly in the habitable zone and are the most likely to contain water. This means, we are most likely to find signs of life there and they could “have a shot at becoming a habitable ecosystem,” an international team from Europe and the US explained.
The planets are much closer to each other than those in our solar system. Upon standing on one exoplanet, you would see the next closest as clearly as we see the moon from Earth.