@grhabib

Comets are often called “cosmic time capsules” because they are leftovers from the birth of our solar system, over 4.6 billion years ago. Locked inside their icy nuclei are clues about the earliest days of planetary formation. When they approach the Sun, their frozen gases vaporize, creating breathtaking tails that can stretch millions of kilometers, making them visible even from Earth with the naked eye.

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