- A suitcase sized chunk of foam that smashed into Columbia's left wing and damaged a critical heat shield is "the most probable cause" of the Columbia space shuttle disaster, an investigation panel said Tuesday.
- "EPA received a comment from the National Aeronautics and Space Administration (NASA) regarding the use of specific plastic foam products for the space shuttle. NASA identified one particular product, BX-250, a foam which is part of the thermal protection system of the Space Shuttle External Tank and which uses CFC-11 as a blowing agent. NASA stated that ``although extensive efforts have been made and continue to be made to replace this material, no viable alternative has been identified.'' NASA requested that EPA revise the proposed rule to provide an exemption for CFC-blown foam products in applications that are associated with space vehicles."
"...This language is far broader than what EPA concludes is actually necessary based on an evaluation of the information NASA presented."
Sad, preventable tragedy.