Life on Venus planet

 

science space biology

 The atmosphere of Venus as viewed in ultraviolet by the Pioneer Venus Orbiter in 1979.

The possibility of life on Venus is a subject of interest in astrobiology due to its proximity and similarities to Earth. To date, no definitive proof has been found of past or present life on Venus. Theories have decreased significantly since the early 1960s, 

when spacecraft began studying the planet and it became clear that its environment is extreme compared to Earth's. However, there is ongoing study as to whether life could have existed on the Venusian surface before a runaway greenhouse effect took hold, and related study as to whether a relict biosphere could persist high in the modern Venusian atmosphere.

Venus's location closer to the Sun than Earth and the extreme greenhouse effect raising temperatures on the surface to nearly 735 K , and the atmospheric pressure 90 times that of Earth, make water-based life as we know it unlikely on the surface of the planet.

 However, a few scientists have speculated that thermoacidophilic extremophile microorganisms might exist in the temperate, acidic upper layers of the Venusian atmosphere. In September 2020 research was published showing the presence of phosphine in the planet's atmosphere, a potential biosignature.

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