(35~37)Scientists think there might be life on the seven planets in the TRAPPIST-1 solar system. TRAPPIST-1 is a small sun with sevenEarth-sized planets, almost the same as our own solar system. NASA scientist Michael Gillon said three of the planets get as muchheat from their sun as Venus, Earth, and Mars get from our Sun, so life could exist. TRAPPIST-1 is about 40 light-years away fromthe Earth. Its sun is smaller and less bright than our Sun, but it could support life.Michael Gillon said that you would have a wonderful view of the other planets if you were on any of them. They would not belike dots of light. They would look bigger than our Moon and you would see things on them. Scientist Dr. Jessie Christiansen saidlife exists everywhere, like hot caves and the bottom of the ocean. She said it could be possible for life to exist on some of theseplanets.