[ExI] silly question

spike at rainier66.com spike at rainier66.com
Thu Sep 5 21:03:02 UTC 2019


From: extropy-chat <extropy-chat-bounces at lists.extropy.org> On Behalf Of William Flynn Wallace via extropy-chat
Subject: [ExI] silly question


Suppose you are on another planet which has an atmosphere.  Will the skies be blue?


bill w



Rayleigh scattering is a function of the chemical composition of the atmosphere as well as the density profile.


Every planet has an atmosphere.  Even Mercury has an atmosphere (not much of one, a trillionth of ours perhaps.)


Venus has an atmosphere, but skies there are white if you are high enough, probably nearly black from down at the surface.


If a planet has an atmosphere like ours with a gravitational field like ours and is a similar distance from a star like ours, good chance that planet would have blue skies.




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