On this edition of A Moment Of Science, we check out some of the atmosphere's many layers.
In 1987, an asteroid came within six orbital hours of hitting earth. What happens if the timing is right?
New bacteria has been discovered in earth's stratosphere...
In 1987 an asteroid measuring a half a mile in diameter came by, missing our planet by a measly six orbital hours. Learn more on this Moment of Science.
How do we clean up the ozone layer? Find out on this Moment of Science.