Harvard’s top astronomer to ‘Post’: Alien life could exist
Lightsail technology could allow humanity to achieve interstellar travel • Modern “Noah’s Ark” could help save, reconstruct life on Earth.
The planet Proxima b orbiting the red dwarf star Proxima Centauri, the closest star to our Solar System, is seen in an undated artist's impression released by the European Southern Observatory August 24, 2016.(photo credit: ESO/M. KORNMESSER/HANDOUT VIA REUTERS)ByAARON REICH
