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The early Earth during the Hadean eon is believed by most scientists to have had a Venus-like atmosphere, with roughly 100 bar of CO 2 and a surface temperature of 230 °C, and possibly even sulfuric acid clouds, until about 4.0 billion years ago, by which time plate tectonics were in full force and together with the early water oceans, removed ...
[13] [14] Similarly, Earth has an effective temperature of 255 K (−18 °C; −1 °F), [14] but a surface temperature of about 288 K (15 °C; 59 °F) [15] due to the greenhouse effect in our lower atmosphere. [5] [4] The surface temperatures of such planets are more accurately estimated by modeling thermal radiation transport through the ...
Although the surface conditions on Venus are no longer hospitable to any terrestrial-like life that might have formed before this event, there is speculation that life may exist in the upper cloud layers of Venus, 50 km (30 mi) above the surface, where atmospheric conditions are the most Earth-like in the Solar System, [106] with temperatures ...
Stratospheric zonal winds on Titan were observed on the order of 100-200 m s −1, [5] faster than the highest zonal winds on Earth at ~60-70 m s −1. Questions on the effect of obliquity in super-rotation on Titan is often compared to Venus, as they share similar centrifugal accelerations to achieve dynamic balance.
In recent decades, new high temperature records have substantially outpaced new low temperature records on a growing portion of Earth's surface. [1] Comparison shows seasonal variability for record increases. The list of weather records includes the most extreme occurrences of weather phenomena for various categories. Many weather records are ...
It's a lot hotter if you compare surface temperatures to surface temperatures -- 288K to 750K. But, if you compare atmospheric temperatures at the same pressures, say at 1 Bar, the difference is a lot less dramatic. Earth's 1 Bar temperature is 288K while Venus' is 360K.
The surface of Venus is comparatively very flat. When 93% of the topography was mapped by Pioneer Venus, [15] scientists found that the total distance from the lowest point to the highest point on the entire surface was about 13 kilometres (8 mi), while on the Earth the distance from the basins to the Himalayas is about
The surface of Venus is comparatively flat. When 93% of the topography was mapped by Pioneer Venus Orbiter, scientists found that the total distance from the lowest point to the highest point on the entire surface was about 13 kilometres (8.1 mi), about the same as the vertical distance between the Earth's ocean floor and the higher summits of the Himalayas.