A snowflake cannot form out of nothing. Water vapour will sit in the air quite happily, supercooled and reluctant, until it finds a speck of dust to build on and then it crystallises around it. Cosmochemists have had a version of that problem for decades. The early Solar System was a furnace of gas,...
Every Snowflake Needs a Speck of Dust and So Do Planets
By system
August 12, 2026 •
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Original source:
Universe Today
