Prelims level : Science & Technology - Awareness in The Fields of It, Space, Computers, Robotics, Nano-Technology, Bio-Technology Mains level : Cassini-Huygens Mission
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Why in News?

  • Saturn’s largest moon Titan has small liquid lakes that run more than 100 metres deep, perched atop hills and filled with methane, scientists have found using data from NASA’s Cassini

Methane Rains on Saturn:

  • Scientists have known that Titan’s hydrologic cycle works similarly to Earth’s — with one major difference. Instead of water evaporating from seas, forming clouds and rain, Titan does it all with methane and
  • We tend to think of these hydrocarbons as a gas on Earth, unless they’re pressurized in a tank.
  • However, Titan is so cold that they behave as liquids, like gasoline at room temperature on our Planet

Cassini Mission:

  • Launched in 1997, the Cassini mission is a cooperation between NASA, the European Space Agency and the Italian Space agency
  • It has sent back thousands of stunning images and made numerous discoveries about the ringed planet and its Moons
  • Cassini–Huygens is an unmanned spacecraft sent to the planet saturn
  • Cassini is the fourth space probe to visit Saturn and the first to enter orbit. Its design includes a Saturn orbiter and a lander for the moon Titan
  • The lander, called Huygens, landed on Titan in 2005
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