... Sprawling across hundreds of light-years, emission nebula IC 1396, visible on the upper right, mixes glowing cosmic gas and dark dust clouds. Stars are forming in this area, only about 3,000 light-years from Earth. ... Where are all of these meteors coming from? ... That is why the last week's meteor shower was known as the Perseids -- the meteors all appear to come from a radiant toward Perseus. ... About 50,000 years ago, however, a large meteor created Barringer Meteor Crater in Arizona, USA. ...