'To Get Back Together': 25 Years Since the Shuttle's First Life Sciences Mission (Part 1)

Carrying the bus-sized Spacelab module in her payload bay, Columbia drifts above Earth in June 1991. Twenty-five years ago, this week, STS-40 marked the shuttle program’s first mission fully devoted to the life sciences. Photo Credit: NASA

For Bryan O’Connor, commander of the space shuttle’s first dedicated life sciences mission, the key concern […]