Are there snowflakes in outer space?

(Some of) the smaller ice particles in Saturn's rings (which are almost entirely made out of water ice) are probably somewhat like snowflakes. read more

No. Outer space do not provide the necessary conditions for formation of them, but you may be able to find them in some planets where conditions for their formation exists. read more

There’s an excellent chance of frost in this corner of the universe: astronomers have spotted a “snow line” in a baby solar system about 175 light-years away from Earth. The find is cool (literally and figuratively) in itself. read more

There are a couple of things required for water to form ice crystals. 1. The temperature must be cold enough. 2. There must be enough pressure to keep the water in a "solid" state. There is a decent amount of "ice" moving around in space. Very little of it is frozen water. Most is frozen CO2, compounds involving nitrogen, ammonia, or methane. read more