Astronomers have been keeping a close eye on an asteroid between 130 and 300 feet long that has a very small chance of crashing into Earth in less than eight years. And as they learn more about ...
We asked experts at NASA and the Massachusetts Institute of Technology what scientists know about the asteroid that could ...
YR4 is circling Earth and NASA predicts it could strike the planet in 2032. Here's what to know about the asteroid headed toward Earth.