RICHARD BIZLEY / SCIENCE PHOTO LIBRARY RICHARD BIZLEY / SCIENCE PHOTO LIBRARY
Surface of Venus and balloon probe, artwork. The surface of Venus is the hottest planetary surface in the solar system, with temperatures of nearly 500 degrees Celsius. This is due to its dense carbon dioxide atmosphere that traps the Sun's heat. The surface atmospheric pressure is around 90 times that on Earth. Clouds of sulphuric acid obscure the Sun and the rest of the sky. Venus is 108 million kilometres from the Sun. Several spacecraft have visited Venus, with 10 Soviet probes in the 1970s and 1980s achieving a landing. None survived for long, with a total of 110 minutes of communication from the surface.
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