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Snow detected for the first time in infant solar system

Snow isn’t just about snowmen or long hours spent digging out from the most recent winter storm. No, snow is also associated with the formation of planets in very young solar systems. Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) telescope have observed snow in an infant solar system for the first time. When a star reaches the critical mass to begin running a sustained fusion reaction, things start heating up fast. The star can only heat matter so far out, so an early solar system forms concentric rings of frozen gas — snow lines just like we have here on Earth in the northern latitudes. Snow lines may have a great deal to do with the formation of planets. Astronomers suspect frozen gasses help small objects clump together instead of annihilate each other. Read More at Geek.com.

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