The effects of a meteor that exploded over Russia in February are still being felt. Researchers say in addition to leaving over 1,000 people hurt, it also created a new layer of dust in the Earth's stratosphere. 

The explosion from earlier this year sent out a burst of energy 30 times greater than that of the atomic bomb that leveled Hiroshima during World War II.

​Some dust fragments the size of buses crashed to the ground ... and others are still up there in the atmosphere, scientists say.