> As far as I can tell, Earth's atmosphere seems to extend further into space than Venus'. Depends on where you want to draw the line for "atmosphere". About

> As far as I can tell, Earth's atmosphere seems to extend further into space than Venus'. Depends on where you want to draw the line for "atmosphere". About 100km out is where the word "pressure" starts becoming near-meaningless on Earth, while on Venus you'd still have about three times as much to work with.