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Yes, they can. The color of the emitted light can be used to determine what the meteor is made of, since different elements heated to incandescence will glow different colors. It is similar to selecting the filling for a fireworks rocket; if you know what color you want, you can mix in the proper elements.

The problem with doing this in practice is that the meteor generally heats to vaporization in a fraction of a second, and it is difficult to capture the spectrum of the meteor other than by sheer luck.

However, most meteors are basically rock and iron; that's why they often glow with the same colors.

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15y ago

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