Trappist-1 and it’s 7 dwarves
Well squee! NASA announced that the little star TRAPPIST-1 has 7 rocky planets, ranging in size from 40% to 140% of Earth’s mass. They’re all very close to the star, closer than Mercury is to our own Sun, but TRAPPIST-1 is an ultracool dwarf star, with a surface temperature of perhaps 2,500 ºC. Our sun is about 5,500 ºC. This means that several of the planets are in the Goldilocks…
