The coma is just an optical illusion. ... The main difference between comets and asteroids is that comets have a coma and tail, and asteroids do not. Both comets and asteroids are rocky outer space bodies. They both orbit the sun, and they both are too small to become round and spherical like planets.
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Answer:
The coma is just an optical illusion. ... The main difference between comets and asteroids is that comets have a coma and tail, and asteroids do not. Both comets and asteroids are rocky outer space bodies. They both orbit the sun, and they both are too small to become round and spherical like planets.
Explanation: