Choose Your Star
Every planet needs a star. The type of star you choose decides where your planet can live, how long it has, and what color its sky will be.
Choose your star
Star Types Explained: O, B, A, F, G, K, M
Astronomers sort stars into seven main classes by temperature, from blazing blue O stars to dim red M dwarfs. What each type means for the planets around it, from habitable zones to lifespans.
Choose your starPlanets Around Red Dwarfs
Red dwarfs are the most common stars in the galaxy and host many rocky planets, including the TRAPPIST-1 system and our nearest exoplanet, Proxima b. Could their planets be habitable?