Saturday, August 13, 2011

When seeing a shooting star, is the light that you're seeing coming from the heated air around the meteoroid?

Shooting stars are caused when a meteor hits the atmosphere. These meteors tend to be the size of miniscule flecks of rock smaller than a single pea. However, meteors hit the atmosphere at such speed (10 to 60 miles per second!) that they combust within a few seconds. During this combustion, a lot of heat energy is transported to the air around it. So when you see a shooting star, are you seeing the immensely heated air that just happened to get hit by the meteoroid, or are you seeing the meteoroid itself as it combusts?

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