Venus’ climate IV: How scientists know Venus’ surface temperature isn’t from a “recent” astronomical collision | Scholars and Rogues
source: http://www.scholarsandrogues.com/2011/05/05/venus-climate-iv-recent-collision/
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Some climate disruption deniers claim that Venus' surface temperature is so hot because Venus is still cooling down from a massive collision that resulted in "resurfacing" the planet's crust. While this idea is supported by estimates of the youth of Venus' crust, a collision cannot be the source of Venus' high surface temperature.
