Tiny Icy World Has an Atmosphere It Shouldn't Have!

Scientists found something amazing far out in space—a tiny world called 2002 XV93 has a thin atmosphere [a layer of gas surrounding it] even though it's so small it should never be able to hold one! The atmosphere is slowly floating away and will probably disappear in about 1,000 years unless something keeps putting new gas back into it, which is a real mystery that has astronomers scratching their heads.