ScienceCasts: Smallest Terrestrial Planet?

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Visit https://svs.gsfc.nasa.gov/10979?utm_source=science&utm_medium=youtube&utm_campaign=2026 for more. NASA's Dawn probe, now orbiting Vesta in the asteroid belt, has found some surprising things on the giant asteroid--things that have prompted one researcher to declare Vesta "the smallest terrestrial planet."

Published 2011-12-09 · Watch on YouTube ↗
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