An asteroid known as 2024 YR4 could be just a few years away from colliding with the moon, and such an impact could have serious consequences.

Oliver Yeh is the kind of guy who cooks up ideas so kooky, so out-of-this-world, that even his fellow MIT students tend to roll their eyes when they hear them. But that never stops him. His latest ...

An asteroid known as 2024 YR4 could be just a few years away from colliding with the moon, and such an impact could have serious consequences.