Conspiracy theories aside, the existence of intelligent lifeforms on other planets has yet to be proven. With that being said, many of those planets may actually be capable of sustaining human life -- if we can somehow travel the distance to inhabit them. Scientists have been searching for other planets that could be conducive to life for quite some time. In fact, NASA's Kepler mission recently confirmed the first near-Earth-size planet in the “habitable zone” around a star that is considered very similar to the sun that we know and love.
Planets like this that orbit relatively close to small stars most likely have magnetic fields to protect their surface and any possible life on it from radiation, according to researchers at the University of Washington. But it gets a little more complex than that. Continue reading