Trappist-1's Seven Planets In Orbit Around Star. Key Ring

Artist concept of what TRAPPIST-1's seven planets might look like in orbit around their host star. TRAPPIST-1 star, an ultra-cool dwarf, has seven Earth-size planets orbiting it. Any of these planets could have liquid water on them. Planets that are farther from the star are more likely to have significant amounts of ice, especially on the side that faces away from the star.