Asteroid 2024 YR4, a roughly 180 foot wide rock initially labeled a “city killer,” has focused attention on how quickly a ...

Picture this. You're sitting at breakfast, scrolling the news, when suddenly headlines scream that a space rock the size of a football stadium is barreling toward Earth. Your coffee goes cold. Your ...

The discovery and swift monitoring of asteroid 2024 YR4 earlier this year represented Earth's first real-life planetary defense test. When you purchase through links on our site, we may earn an ...