System of seven Earth-like planets could support life
The TRAPPIST-1 planetary system is now at the center of the search for life outside our solar system. Seven Earth-sized terrestrial planets have been discovered orbiting an ultra-cool dwarf star. They’re the most promising target yet in the search for life outside our solar system. 40 light years away, the planets are—like Earth—terrestrial rocky worlds that could support life under the right atmospheric conditions.