News today Technology today – researchers discover Earth’s atmosphere is as toxic as Venus. News source – Arabs Today, with the details of the news, researchers discover that the Earth’s atmosphere is as toxic as Venus:
Today’s News – Washington – Al-Arab Today
Scientists have found that the early atmosphere of our planet is as toxic as current Venus, as gases leak from the magma ocean during Earth’s evolution. An object the size of Mars may have collided with the young Earth in an effect that released enough energy to melt and transform the entire mantle of the early planet – the layer between the core and the crust – This massive event drew most of the Earth’s atmosphere at the time, replacing carbon dioxide with very little nitrogen – much like the atmospheric composition of Venus today, and similar to Mars. These results came from a study by Paolo Souci and his team at ETH Zurich, Switzerland, whose paper, published in Science Advances on Wednesday, explored “Earth’s magma ocean and its early flower-like atmosphere.”
In order to understand the early Earth’s atmosphere, the team recreated these conditions by floating a small piece of rock over a gas jet, then melting it down with a 1900 ° C laser. “This small molten marble that float at 2,000 degrees, ”Susi told the New Scientist. It’s kind of a small Earth in its molten state. ”By using a variety of gases in the airplane to stop a molten rock fragment, the researchers reconfigured various atmospheric conditions, allowing them to see which most closely corresponds to mantle samples and the geological record.
The team found that once the atmosphere released from Earth’s magma ocean cools, it will “resemble the present planet Venus.” This, they say, shows that the current differences between the Earth’s atmosphere and Venus reflect what happened after the two planets formed and that our planet is large enough that gravity sustains it. Its atmosphere is in place, unlike Mars, while the position of the Earth in the solar system also makes it cool enough compared to Venus. This means that, unlike Venus, water stays in liquid form on the Earth’s surface and can absorb carbon dioxide from the atmosphere to stop global warming – and most importantly to create the conditions that necessary for the maintenance of life.
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