New research from Adelaide University suggests the power of the ancient Tethys Ocean might have shaped Central Asia's ...

Tonight two of Saturn’s 10th-magnitude moons, Dione and Tethys, show off their relative motions as they orbit the ringed world. Look for Saturn in the south after dark, easy to spot at 1st magnitude.

As the Earth's crust shifted and groaned over millions of years, something extraordinary happened beneath the surface. Deep inside the planet, hot rock began rising. Over time, this invisible force ...

Saturn’s moons Tethys and Dione are flinging great streams of particles into space, according to data from the NASA/ESA/ASI Cassini mission to Saturn. The discovery suggests the possibility of some ...