FLAGSTAFF, Ariz. — The third Planetary Defense Conference is in Flagstaff this week. In attendance are scientists, engineers and policymakers from across the globe who are deciding how to deflect an ...

Scientists are meeting this week to figure out how to stop a hypothetical asteroid traveling at 31,000 mph from hitting the Earth. NASA says this is just an exercise and there is no imminent danger of ...

In 2016, NASA consolidated several programs into the Planetary Defense Coordination Office (PDCO), designed to work with other federal agencies, including the Federal Emergency Management Agency. The ...