S90-28700 (12 Feb 1990) --- Astronaut Jeffrey A. Hoffman, STS-35 mission specialist, takes a breather from an emergency egress training session in the Johnson Space Center?s (JSC) Shuttle mockup and integration laboratory. He wears an orange, partial pressure escape suit. Hoffman and six other crewmembers are in training for a nine-day mission supporting the ASTRO-1 payload later this year.