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Solar System's First Bodies Formed in Heat, Not Ice
Original: Our Solar System Chose Fire Over Ice To Build Its First Bodies
A new report argues that the first solid bodies in our solar system formed from hot, fiery material close to the Sun rather than from icy grains in the cold outer regions. The finding challenges the long-standing picture of planet formation beginning with ice-rich building blocks, suggesting early inner-solar-system heat played the decisive role in shaping the first planetesimals.
Why now: New research challenges the accepted model of how the solar system's first solid bodies formed.
Evidence
- Our Solar System Chose Fire Over Ice To Build Its First Bodies · Astrobiology Web
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