The coldest, driest, calmest place on Earth

When you’re planning your next holiday, a site known as Ridge A that sits 4,053m (2.5 miles) high up on the Antarctic Plateau, will probably be one of the first places to strike off the list. Although the research team that discovered it says it could be the calmest place on Earth, it is also thought to be the coldest and driest. A joint U.S.-Australian team pinpointed the site by combining data from satellites, ground stations and climate models in an attempt to find the best observatory site in the world by assessing the many factors that affect astronomy, such as cloud cover, temperature, sky-brightness, water vapor, wind speeds and atmospheric turbulence.

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