Signs of Hidden Ocean Underneath Titan’s Crust

A strange shift in the position of mountains and lakes on the surface of Saturns moon Titan can best be explained, researchers say, by positing a layer of liquid water (blue) some 100 kilometers below the surface.NASA-JPL

TITAN'S HIDDEN OCEAN: A strange shift in the position of mountains and lakes on the surface of Saturn's moon Titan can best be explained, researchers say, by positing a layer of liquid water (blue) some 100 kilometers below the surface.NASA-JPL

Astronomers’ mental image of Titan, the solar system’s second-largest moon, used to be that of a vast swimming pool. But maybe they should have imagined a water bed instead.

Last year, researchers reported that radar mapping of Titan by the Cassini spacecraft had found a peculiar shift in landmarks on the moon’s surface of up to 19 miles (30 kilometers) between October 2004 and May 2007.

Now investigators say the best explanation is a moon-wide underground ocean that disconnects Titan’s icy crust from its rocky interior.

“We think the structure is about 100 kilometers of ice sitting atop a global layer of water … maybe hundreds of kilometers thick,” says Cassini scientist Ralph Lorenz of Johns Hopkins University Applied Physics Laboratory in Laurel, Md.

If confirmed, Titan would be the fourth moon in the solar system thought to contain such an internal water ocean, joining Jupiter’s satellites Ganymede, Callisto and Europa. Researchers believe that heat from radioactivity in a moon’s core or gravitational squeezing may melt a layer of frozen water.
read on

About Rashid Faridi

I am Rashid Aziz Faridi ,Writer, Teacher and a Voracious Reader.
This entry was posted in News, oceans, Solar System, water. Bookmark the permalink.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.