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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 the CO 2 and sulfur from the atmosphere. [94]
Feb 3, 2020 · The facile answer is "Venus's atmosphere has many times the mass of Earth's atmosphere because it has many times the amount of gas". Which makes us ask wonder why that is. Many planetary scientists have interpreted the relatively even distribuion of impact craters on the surface of Venus as a sign that the planet was resurfaced in some catastrophic event 500-700 million years ago:
Aug 9, 2016 · Kat - And its holding some gas onto it like an atmosphere. Matt - That's cute! Ah, I see a brand of toys emerging here. And Venus is very similar to Earth - it's essentially our twin planet. So it's heavy and that means it holds onto its gas so that is why it has more of an atmosphere. Kat - Because of the magnetic cuddle.
Venus’ atmosphere is one of extremes. With the hottest surface in the solar system, apart from the Sun itself, Venus is hotter even than the innermost planet, charbroiled Mercury. The atmosphere is mostly carbon dioxide – the same gas driving the greenhouse effect on Venus and Earth – with clouds composed of sulfuric acid.
Mar 28, 2023 · If Venus's atmosphere really is 90 times that of earth the hull of a the most advanced nuclear sub would be crushed like a pancake. 90 ATM should be 750 meters and crush depth is 730 meters for nuclear sub. I mention this because it is so interesting Venera survived in order to take the measurements at the surface.
In the atmosphere of Earth, sulfur dioxide is one of the primary gases emitted by volcanoes, but it is quickly diluted and washed out by rainfall. In the dry atmosphere of Venus, this unpleasant substance is apparently stable. Below 30 kilometers, the Venus atmosphere is clear of clouds. Surface Temperature on Venus
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Nov 11, 2024 · Venus - Atmosphere, Greenhouse, Gases: Venus has the most massive atmosphere of the terrestrial planets, which include Mercury, Earth, and Mars. Its gaseous envelope is composed of more than 96 percent carbon dioxide and 3.5 percent molecular nitrogen. Trace amounts of other gases are present, including carbon monoxide, sulfur dioxide, water vapour, argon, and helium. The atmospheric pressure ...
