Planets discovered
NASA announced Wednesday the discovery of the first known system of seven Earth-sized planets around a single star known as TRAPPIST-1. The seven worlds are orbiting the small, cool star some 40 light-years away.
NASA announced Wednesday the discovery of the first known system of seven Earth-sized planets around a single star known as TRAPPIST-1. The seven worlds are orbiting the small, cool star some 40 light-years away.