On hearing the words "city killer" and "asteroid" in the same sentence, you'd be forgiven for thinking something bad is about to happen. But not to fear. Although an asteroid with the potential to ...

Asteroid 2024 YR4 is about 200 feet (60 meters), which is about the size of a 15 storey building. (Elements of this image furnished by NASA. Adobe Photoshop CC 2015. Knoll light factory. Adobe After ...

An asteroid is the most likely reason the dinosaurs went extinct—but could something similar happen to us? A new study has compared the likelihood of a devastating asteroid impact to other causes of ...

Forbes contributors publish independent expert analyses and insights. Amanda Kooser covers the quirky side of science and space. This artistic rendition of an asteroid approaching Earth is exactly ...