Morning Overview on MSN

5 space missions racing to stop a 'city-killer' asteroid

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

NASA's DART: Redirecting an asteroid to protect Earth

The first flight mission for planetary defense, NASA's Double Asteroid Redirection Test (DART) seeks to validate a method to ...