Exploring comet thermal history: Burnt-out comet covered with talcum powder

ScienceDaily
Apr 6, 2021, 12:07 pm143 pts
The world's first ground-based observations of the bare nucleus of a comet nearing the end of its active life revealed that the nucleus has a diameter of 800 meters and is covered with large grains of phyllosilicate; on Earth large grains of phyllosilicate are commonly available as talcum powder. This discovery…

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