The asteroid 2024 YR4 was, for a brief time, thought to be on a potential collision course with Earth. Now, that has been ruled out, but scientists still believe it has a small chance (only about 4 ...

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.

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Our Moon was formed from a violent collision that occurred around 4.5 billion years ago. And the giant body that smashed into the Earth, birthing the planet’s natural satellite, was named Theia. A new ...