SYFY WIRE Explore The LatestMoviesTVGamesComicsInterviews All Posts Tagged International Astronomical Union New observations show the asteroid Hygiea is round! By Phil Plait | 3 years ago How do you know which pole of a planet is the *north* pole? By Phil Plait | 3 years ago Contest: Pick names for Jupiter's new moons! By Phil Plait | 4 years ago Pluto's posse By Phil Plait | 5 years ago