How a comet changes when when it comes close to the sun?
It explodes***
Disagree. Haley's comet has made the trip several times.
https://www.google.com/search?client=safari&rls=en&q=comet+tail+and+sun&ie=UTF-8&oe=UTF-8
It explodes***
https://www.google.com/search?client=safari&rls=en&q=comet+tail+and+sun&ie=UTF-8&oe=UTF-8