Compared to other planets in our solar system, Earth is filled with impressive landscapes, including snow-capped peaks, lush rainforests, and vast oceans. But some places on our planet are so extreme, they're otherworldly — like Venus otherworldly. The Atacama Desert in Chile is one of the driest places in the world, so it makes sense that such a parched ecosystem would get its fair share of sun. But in the summer of 2023, scientists discovered that some parts of this immense plateau in fact get far more sunlight than any other place on Earth. While taking measurements of solar irradiance (light energy from the sun) on the Chajnantor plateau, researchers discovered — via a complex meteorological process known as "forward scattering" — that this area was nearly as sunny in summer as the surface of Venus. Despite some key differences between the two planets, scientists often call Venus Earth's twin. Venus is roughly the same size as Earth, formed in the same area of the inner solar system, and is composed of much the same material — scientists even theorize that Venus was just like Earth some 3 billion years ago. But it is definitely not Earthlike now; it's a sweltering hell planet thanks to an atmosphere of thick carbon dioxide that traps all greenhouse gases. If you somehow found yourself on Venus, high levels of solar irradiance would be the least of your immediate worries, considering its surface temperatures of 900 degrees Fahrenheit and sulfuric acid-filled clouds. |
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