We shouldn’t expect advanced civilizations, but some simple life-forms may exist
An artist's concept of what it could look like on TRAPPIST-1f. Image Credit: NASA/JPL-Caltech
There have been many discoveries of potentially habitable planets orbiting stars other than our own over the last few years. Now things are getting even more exciting. Scientists have documented a star surrounded by no fewer than seven Earth-like planets—several or all of which could be at the right temperature for liquid water and, potentially, life to exist.