Over the next several weeks, astronomers will be looking closely at an asteroid called 2024 YR4 that could be as big as a ...

Weeks after the asteroid's discovery, China’s defense agency announced three key vacancies in its planetary defense ...

Over the next several weeks, astronomers will be looking closely at an asteroid called 2024 YR4 that could be as big as a ...

China is mobilizing against an asteroid with disturbingly good odds of hitting the planet. Here’s what you need to know.

Scientists have increased the risk that the 196ft-wide 2024 YR asteroid could smash into Earth to 1-in-43 – and there's some ...