Astronomers discovered 7 new Earth-sized planets orbiting the nearby TRAPPIST-1 star, about 40 light years away. Three of these planets are within the habitable zone in their solar system. This means they are orbiting their sun at about the same distance Earth does. Any of these planets could have water on its surface and could support life like what we see at home. This is a rare discovery. "This is the first time that so many planets of this kind are found around the same star," said Michaël Gillon, lead study author and astronomer at the University of Liège in Belgium.