NASA's James Webb Telescope is set to take a look at the 'city-destroying' asteroid which could hit Earth in 2032. The asteroid, known as '2024 YR4', was discovered by NASA’s Asteroid Terrestrial-impact Last Alert System (ATLAS) in Chile on 27 December, last year.

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.