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.

In 2021, NASA gave the all-clear to another potentially worrisome asteroid, Apophis, after new telescope observations ruled out any chance of it hitting Earth in 2068. It's way too soon to fret over this asteroid, according to the experts.