Billions of years ago, so the theory goes, something around the size of Mars smacked into Earth, spewing a whole bunch of dirt into space that eventually coalesced to form the Moon. This is called the ...

Eons ago, in the frigid depths of our solar system, a dramatic collision occurred between two icy worlds. Instead of a catastrophic smash-up, the two bodies "kissed," merging temporarily like a ...

After Titan's violent birth, its new orbit destabilized smaller moons. Resonant tugs drove collisions among Saturn's inner satellites. Most fragments would recombine into moons, but ice debris ...

A new study, led by SETI Institute scientist Matija Ćuk, proposes an intriguing explanation for the formation of Saturn’s ...

The moon may be more than 100 million years older than some scientists previously thought, according to a new study. The research, published Wednesday in the journal Nature, challenges the ...

Recent research suggests that Saturn's bright rings and its largest moon, Titan, may have both originated in collisions among ...

Research into the formation of the moon was conducted by scientists at the Weizmann Institute of Science in Rehovot, Israel and the Technion-Israel Institute of Technology located in Haifa. Results of ...

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

Earth's calm and cool lunar companion may indeed once have been a roiling ball of molten rock, new research has found. The moon has been long theorized to have formed due to a Mars-sized planet named ...

The research suggests that lunar rock samples from the Apollo missions date to an event that melted the moon's surface — not to the moment it formed. The authors therefore think the moon formed around ...