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How do we know what asteroids are made out of?
- March 9, 2026 at 10:50 PM
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Asteroids are some of the oldest objects in the solar system: leftovers from the chaotic time when planets were assembling from dust and rock. They're time capsules, preserving clues about what the early solar system was like, and, ultimately, what the building blocks of planets are.
Originally published at Phys.org