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- It's believed that Venus may have been a temperate planet hosting liquid water for 2 to 3 billion years before a massive resurfacing event about 700 million years ago triggered a runaway greenhouse effect, which caused the planet's atmosphere to become incredibly dense and hot.
www.space.com › planet-venus-could-have-supported-life
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Sep 23, 2019 · By 715 million years ago, the atmosphere of Venus would likely have been dominated by nitrogen with trace amounts of carbon dioxide and methane — much like Earth's today. The...
Aug 11, 2016 · Venus may have had a shallow liquid-water ocean and habitable surface temperatures for up to 2 billion years of its early history, according to computer modeling of the planet’s ancient climate by scientists at NASA’s Goddard Institute for Space Studies (GISS) in New York.
- Rob Garner
Aug 10, 2016 · Because the answers to both questions are fairly uncertain, the research team also modeled what Venus’s climate would have looked like 2.9 billion years ago if it had an Earth-like...
Sep 24, 2019 · Roughly 715 million years ago, the Venusian atmosphere would have been pretty similar to Earth, with a predominance of nitrogen with some trace amounts of carbon dioxide and methane.
Oct 26, 2023 · Venus had Earth-like plate tectonics billions of years ago, study suggests Simulations produced by a Brown-led research team offer evidence that Venus once had plate tectonics — a finding that opens the door for the possibility of early life on the planet and insights into its history.
Sep 20, 2019 · Research suggests Venus may have had water oceans billions of years ago. A land-ocean pattern was used in a climate model to show how storm clouds could have shielded ancient Venus from...
Sep 22, 2019 · At 4.2 billion years ago, soon after its formation, Venus would have completed a period of rapid cooling and its atmosphere would have been dominated by carbon dioxide. If the planet evolved in an Earth-like way over the next 3 billion years, the carbon dioxide would have been drawn down by silicate rocks and locked into the surface.
