Space.com talked with Johnson, the space agency's Planetary Defense Officer Emeritus, now in phased retirement mode, about his decades of work in shaping a global response and reaction to a rocky ...

In December, astronomers identified that the asteroid YR4 had a small but not insignificant chance of striking Earth in 2032, ...

Basically, NASA posted a job listing looking for a full-time "planetary protection officer" to join the agency—and breathless alien hilarity ensued. At a really fundamental level, that's kind of ...

NASA’s Planetary Defense Officer, said in a statement. “This exercise will help us develop more effective communications with each other and with our governments.” The fictional event will ...

which focuses on the Planetary Defense Coordination Office. The office is responsible for detecting, tracking, and, if necessary, deflecting asteroids and comets that could come dangerously close ...

a size that could be “a disaster of the scale of anything we’ve seen,” according to Planetary Defense Officer Emeritus Lindley Johnson, who established the office in 2016. Another 11,266 ...