May 28, 2009: Astronomers Dave Tholen and Roy Tucker Answer Your Questions

     Spaceguard SG-1: Roy Tucker, Dave Tholen, and Fabrizio Bernardi Back in December 2004, there was some concern that the asteroid known as Apophis 99942 might strike the planet in 2029. However, further number-crunching ended up eliminating the remote (approximately 3%) possibility and, as a result, I was forced to convert my asteroid shelter…