Space agencies from the US, Europe and Japan are all making plans to visit the asteroid Apophis when it makes an extremely close flyby in 2029 to learn how to deflect others like it ...

A Q&A with Lindley Johnson, a pioneer in blueprinting warning and response scenarios to any potential impact of Earth by an ...

Three Tucson scientists are featured in "Planetary Defenders," a new NASA documentary that premieres Wednesday about the effort to track and possibly deflect asteroids endangering Earth.

Ever wondered why some managers seem ill-suited for their roles? Explore the Peter Principle, a concept introduced by Dr. Laurence J. Peter, which suggests that employees are promoted based on their ...