More space technology must be developed to prevent "city-killing asteroids" from hitting Earth, experts recommended at a recent science conference. While the risk is low, mid-size asteroids near Earth ...

Our planet is currently defenseless against “city killer” asteroids, noting “we don’t know where they are,” a leading scientist has warned this week. Astronomer Kelly Fast, NASA’s planetary defense ...

NASA experts are raising alarms about the growing threat posed by near-Earth asteroids, with some of these objects having the potential to cause devastating damage to cities. While some large ...

NASA is monitoring a house-sized asteroid that is speeding towards Earth at more than 26,200 miles per hour, according to the space agency's Center for Near Earth Object Studies (CNEOS). The space ...

Here’s one less thing to worry about: Scientists have confirmed that NASA is even better than it thought at protecting us from asteroids. Despite doomsday movie plots about Earth-ending collisions, a ...

Add Yahoo as a preferred source to see more of our stories on Google. If an asteroid ever needs to be diverted from a collision course with Earth, a future planetary defense mission may resemble a ...