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Asteroid belt — What it is, where it is and how it formed

A vast ring of rocky leftovers between Mars and Jupiter, the asteroid belt preserves clues to how the planets — and Earth ...

What is 3I ATLAS? Here's when and how to see the interstellar comet this week

Wondering what 3I ATLAS is all about? Here's what to know as interstellar comet 3I/ATLAS nears Earth this week, when to watch ...
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Interstellar comet 3I/ATLAS comes nearest to Earth ahead of Christmas

Interstellar comet 3I/ATLAS is coming nearest to Earth on December 19, and astronomers are eager to welcome it as a Christmas ...