The 7 alien planets orbiting TRAPPIST-1 are like peas in a pod

The seven rocky planets orbiting the red dwarf star TRAPPIST-1 have remarkably similar densities, suggesting they likely have similar compositions, too.The seven rocky planets orbiting the red dwarf star TRAPPIST-1 have remarkably similar densities, suggesting they likely have similar compositions, too.Read More

Choose your Reaction!
Leave a Comment