A new image released by NASA's Jet Propulsion Laboratory shows an incredible new surface feature discovered on Saturn's icy moon of Tethys: enormous, red arcs that span most of the moon's northern ...

Like graffiti sprayed by an unknown artist, unexplained arc-shaped, reddish streaks are visible on the surface of Saturn’s icy moon Tethys in new, enhanced-color images from NASA’s Cassini spacecraft.

Tonight, the Moon will pass close to bright Jupiter, offering stargazers a striking and easily visible sight. This naked-eye event will make two of the night sky’s brightest objects appear side by ...

On October 25, 1671, the Italian astronomer Giovanni Cassini discovered a new moon at Saturn! ‘On This Day in Space’ Video Series on Space.com Iapetus was the second moon anyone had ever found ...