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泰坦上的海洋水

时间:2018-09-12 编辑:admin

Titan is one strange place; it大发国际’;s a satellite, but it’;s bigger than Mercury, and it’;s also the only satellite known to have a dense atmosphere。 Furthermore, aside from Earth, it’;s the only place where evidence of liquid has been found on the surface。 Now, after studying some abnormalities in the rotation of Saturn’;s largest moon, researchers believe that there is also an underground ocean, which might even harbor life。

The Titan and the water

Even though Titan is covered with liquid, this liquid is made of liquid methane instead of water, which sparkled a lot of controversy along the years, regarding whether it could hold life or not。 However, this could change things dramatically, if it is confirmed that the satellite doesn’;t only have water on its surface, but it also has an internal ocean, one of water and ammonia。

Artist depiction of the likely underground of Titan, in which ice and rock haven';t separated into different layers。 In addition to Titan';s surface (yellow), you can also see ice layer starting near the surface (light gray), an internal ocean (blue), another layer of ice (light gray) and the mix of rock and ice in the interior (dark gray

Using radar to peer through Titan’;s dense atmosphere, the Cassini spacecraft found a number of significant surface features had shifted from their expected positions by up to 19 miles (30 kilometers), which can only suggest that the crust is resting on something liquid。 But now, gravitational and radar observations performed by Cassini have suggested even more clues to an underground ocean。

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