Astronomers studying the outer solar system have reported a new finding about Makemake, one of the dwarf planets beyond Neptune. According to recent research, the icy body shows evidence of methane ...

An orange, striated sphere hangs in space with stars behind it with a line from it drawn to a box that contains a space-filling model of phosphine where phosphorus is orange and hydrogen is white.

Brown dwarfs: too small to be stars, too big to be planets. Only discovered in the 1990s, these in-between cosmic objects aren’t big enough to burn as hot and bright as a true star, instead usually ...