ScienceBob Ebeling, Engineer Who Forewarned NASA About Challenger Disaster, Dies Bob Ebeling, the engineer who tried to warn his bosses at Morton Thiokol about the potential danger surrounding the Space Shuttle Challenger's launch in 1986, passed away in Utah on Monday. Ebeling was 89 years old.by Ted Ranosa
ScienceAurorasaurus: Citizens Share Real-Time Aurora Observations, Help NASA Researchers Better Understand The Phenomenonby Dianne Depra