Astronomy:Water on Venus
Water on Venus refers to the hypothetical hypothesis that water was once on the surface of the planet Venus.
Early thoughts
Scientists and authors alike, long proposed Venus was habitable, although information from the Soviet Unions Venera missions, and from the Pioneer Venus Orbiter probe and Magellan spacecraft prove that Venus was the complete opposite of the hypothetical world proposed. The study used information from many satellites studying climate change orbiting earth.[1]
Venus Express findings
Data from the Venus Express satellite, made by the European Space Agency (ESA), took pictures of Venus, officially unveiling that Venus could’ve potentially had liquid, although how the liquid formed on Venus is still unclear.[2] New simulations using this previous information have been created at NASA’s Goddard Institute for Space Studies in New York City .[1]
Recent studies
Information using Venus’s cloud data prove that minimal amounts of water vapor exist in Venus’s clouds, possibly proving that Venus once had a functioning water cycle, or could have had a frequent presence of water evaporation.[3] Using image data from Magellan, scientists could fill lowlands of Venus’s surface area with water, only leaving Venusian continents visible. This maneuver done in the test further proved Venus could have been subject to possible land, meaning that hypothetical terrestrial animal could have roamed Venus at some point in its history. The test also used measurements from the Pioneer Venus project from the 1980s, and with research, scientists firmly believed that Venus could have been exposed to large portions of sunlight for 2 months, and then be exposed to no light for 2 months, evaporating or freezing liquids on Venus’s surface, later destroying water-vapor molecules because of the Sun’s ultraviolet radiation, removing crucial elements from Venus’s atmosphere, leading to hydrogens removal from Venus, later creating a runaway greenhouse effect due to waters absence from Venus. GISS also proved that Venus had drier land then modern day Earth, further proving that there was a limit to how much water evaporated from Venus’s oceans, later creating the thick layer of clouds seen on Venus today.[1]
References
- ↑ 1.0 1.1 1.2 "NASA Climate Modeling Suggests Venus May Have Been Habitable". 11 August 2016. https://www.nasa.gov/centers-and-facilities/giss/nasa-climate-modeling-suggests-venus-may-have-been-habitable/.
- ↑ "Oceans on Venus Might Have Been Habitable". 24 June 2010. https://www.space.com/8659-oceans-venus-habitable.html.
- ↑ Jackson, Justin. "Venus could have had oceans long after life started on Earth". https://phys.org/news/2023-03-venus-oceans-life-earth.html.
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