In emergency decision, James Webb telescope will study 'city-killer' asteroid 2024 YR4 before its close approach to Earth
In emergency decision, James Webb telescope will study 'city-killer' asteroid 2024 YR4 before its close approach to Earth
![](https://lemdro.id/pictrs/image/0da450d6-7a27-4888-8b20-ad7386f41d43.jpeg?format=webp&thumbnail=128)
In a rare "time-critical" decision, the James Webb Space Telescope will study the true size of the "potentially hazardous" asteroid 2024 YR4 twice over the next few months. The asteroid has a roughly 2.3% chance of impacting Earth in 2032.
![In emergency decision, James Webb telescope will study 'city-killer' asteroid 2024 YR4 before its close approach to Earth](https://lemdro.id/pictrs/image/0da450d6-7a27-4888-8b20-ad7386f41d43.jpeg?format=webp)