This is what a trip to an Earth-like planet might be like, according to an MIT astrophysicist

Since at least the time of the Greek philosophers, humans have speculated about the existence of other worlds. Today we know our night sky is literally teeming with exoplanets—planets that orbit the stars outside our solar system. And it was with great excitement that the world greeted the announcement on Aug. 24 that scientists haddetected a planet orbiting not just any star, but the star nearest to our own sun, Proxima Centauri.