Hi,
பூமியின் தங்கச்சி விடிவெள்ளி,

Venus is the second planet from the Sun and is commonly referred to as Earth's "sister planet" due to its similar size and composition. It is the closest planet in our solar system to Earth.

Venus is quite comparable to Earth in size, with a diameter of around 12,104 kilometres (7,521 miles), making it the second-largest terrestrial planet after Earth.

Extreme Surface Temperature: The surface of Venus is extremely hot, with temperatures reaching over 900 degrees Fahrenheit (475 degrees Celsius). Despite being further from the Sun, this is hotter than the surface of Mercury.

Venus has a thick and dense atmosphere that is mostly made up of carbon dioxide (approximately 96.5%) with traces of sulphur dioxide and nitrogen. This atmosphere has a high greenhouse effect, trapping heat and contributing to the planet's severe temperatures.

Venus revolves on its axis in the opposite direction as the majority of the planets in our solar system, a phenomenon known as retrograde rotation. It rotates slowly, taking approximately 243 Earth days to complete one rotation, thus its day (one full day-night cycle) is actually shorter than its year (approximately 225 Earth days).

No Moons or Rings: Unlike many other planets in our solar system, Venus has no moons or rings.

Volcanic Activity: It is thought that Venus had a geologically active history with substantial volcanic activity. Its surface is covered in numerous of volcanoes, including the colossal Maxwell Montes, Venus's tallest peak.

Extreme Pressure: The pressure on Venus's surface is approximately 92 times that of Earth's surface, which is similar to the pressure found 900 metres (3,000 feet) underwater on Earth.

Venus has no liquid water on its surface because of its high temperatures and dense atmosphere. Any water that existed in the past is likely to have evaporated and escaped into space.

Exploration of Spacecraft: Several spacecraft have been despatched to Venus to examine its surface and atmosphere. In the 1990s, NASA's Magellan mission utilised radar to map the planet's surface in great detail, revealing features such as volcanoes and enormous highland regions.

Future Exploration: Future missions to Venus were planned as of my last information update in September 2021, including NASA's VERITAS (Venus Emissivity, Radio Science, InSAR, Topography, and Spectroscopy) and ESA's EnVision missions. These missions aim to learn more about Venus and its geology.


Regards,
Vaan Veli
Santhosh


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