A team of astronomers led by Dr. Michaël Gillon from the University of Liège has discovered three Earth-sized exoplanets around a nearby ultracool dwarf star, dubbed TRAPPIST-1. Details of the discovery appear in the journal Nature. This artist’s impression shows an imagined view from the surface one of the three exoplanets orbiting the ultracool dwarf star TRAPPIST-1 38.8 light-years from Earth. These alien worlds have sizes and temperatures...
