For decades, astronomers have debated the mystery at the heart of Jupiter, the largest planet in our solar system. Many believed that a colossal collision with an early planetary body must have ...

A new NASA study of data from its old Cassini mission to Saturn suggests that giant moon Titan may not have a global ocean — ...

For more than a decade, scientists have accepted that Titan, Saturn’s biggest moon, has a subsurface ocean of liquid water. A ...

The Saturn System has been studied in detail by the Cassini-Huygens Mission. A major thrust of those investigations has been to understand how Saturn formed and evolved and to place Saturn in the ...

Saturn's moon Titan is shown in the foreground, with Saturn looming behind it. This image was captured by the Cassini spacecraft on May 22 ...