Scientists across the world, including some in Arizona, are keeping an eye on an asteroid that has a very slim chance of hitting earth in the near future. Here's what to know about asteroid 2024 YR4.

Earth and moving farther away on its orbital path around the sun. There’s a more than 1% chance the asteroid will make its way toward Earth and crash-land on the planet in December 2032. But scientists say they expect the asteroid’s future trajectory and impact probability to change as astronomers collect and analyze more data.

The head of planetary defense at the European Space Agency discusses 2024 YR4, an asteroid with a small chance of striking Earth eight years from now.