Saturn’s largest moon, Titan, might have formed after a collision with a lost moon, according to new research.

Scientists suggest Titan formed from a giant moon collision that also may explain Saturn’s rings and strange moon orbits.

Tracking the rotation speed of solid planets, like the Earth and Mars, is a relatively simple task: Just measure the time it takes for a surface feature to roll into view again. But giant gas planets ...

Under this new model, Titan itself is the result of a collision between two earlier moons: a large body called “Proto-Titan,” nearly as massive as modern Titan, and a smaller companion dubbed ...

Now, a study led by SETI Institute scientist Matija Ćuk proposes an explanation linking the formation of the moons and rings, centering on the possibility that Titan is the product of a moon merger.

Saturn’s largest moon, Titan, may have been born of the collision of two smaller moons, according to new research.

rotation. Here’s the puzzle: That is about 6 minutes, or one percent, longer than the radio rotational period measured by the Voyager 1 and Voyager 2 spacecraft, which flew by Saturn in 1980 and 1981.