By Encyclopedia Britannica
Whilst the overseas Astronomical Union lately redefined the time period 'planet'; Pluto was once stripped of its designation because the sunlight system's 9th planet. New perspectives of the sun method seems at scientists' altering views at the sun process, with articles on Pluto, the 8 leader planets, and dwarf planets that illustrate this 'new view'; excellent photographs and drawings exhibit the planets, asteroids, comets, and extra, supplying a beautiful selection of bright and distinct pictures of the sun approach.
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Additional resources for New Views of the Solar System (Compton's by Britannica) (Learn and Explore)
Example text
Approaching Venus within about 22,000 miles (35,000 kilometers), the craft surveyed the atmosphere and collected data about the planet’s rotation and high surface temperatures and pressures. It found no evidence of a global magnetic field. In 1967 Mariner 5 flew closer to Venus, passing within about 2,500 miles (4,000 kilometers). Its more sensitive instruments returned more precise data about the atmosphere, including the heavy concentration of carbon dioxide. Mariner 10, the last craft of the series, took some 4,000 photographs of Venus during a flyby in 1974.
This might result from its extremely slow rotation rate. Scientists think that a planet’s rotation helps drive the fluid motions in the planet’s core that generate a magnetic field. Atmosphere, Surface, and Interior Atmosphere and greenhouse effect. Venus has by far the most massive atmosphere of the four terrestrial planets. The pressure exerted by the atmosphere at the planet’s surface is about 95 bars, or 95 times the atmospheric pressure at sea level on Earth. 5 percent molecular nitrogen, with only trace amounts of other gases.
Venus does not now seem to experience plate The Soviet Venera 4 atmospheric probe, shown on Earth before its tectonics as Earth does (see Earth, “Plate tectonics”). Plate tectonics involves mainly horizontal movements launch, took direct measurements of Venus’ atmosphere in 1967. It was the first object made by humans to enter the atmosphere of of a planet’s crust and upper mantle. another planet and transmit data back to Earth. Observation and Exploration Venus was observed from Earth for centuries before the invention of modern astronomical instruments.