Atmosphere - Over the Century

Water Vapor

"Yes" - 1907, 1909

"No" - 1909

"A Little" - 1925

"No" - 1933

"Not Very Much" - today

 

 

 

 

 

 

 

Composition

Oxygen

"A Good Bit" - 1925

"None" - 1933

"Not Very Much" - today

Carbon Dioxide

 

 

 

 

 

 

 

 

Thickness

1920's - 1940's: 25 - 90 mb (Earth's is 1000 mb.)

Today: 7 mb

 

 

 

 

 

 

 

 

 

 

 

Temperature

First Measurements (1920's): -35°C to 20°C

Today: -140°C to 20°C

 

 

 

 

 

 

 

 

 

 

Atmosphere is too thin for liquid water.

 

 

 

 

 

 

 

 

 

 

 

 

 

Maybe Plant Life, Lichens?

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