Bobby Satcher...

2004 Astronaut Candidate

There's some scientist in me. There's some explorer in me," says Dr. Bobby Satcher. "There's a humanitarian in me also. Space is the one venue that has the highest potential for benefiting people if we continue to be serious about exploring it."

Satcher, 38, a medical doctor who also holds a doctorate in chemical engineering, is one of 11 Americans selected to begin astronaut training this summer at NASA's Johnson Space Center in Houston. "I have always had an interest in service and an interest in science," says the future mission specialist. "I am interested in exploration, too. Becoming an astronaut lets me do all three."

Dr. Satcher comes to NASA from a research post at Northwestern University in Illinois. He's an orthopedic surgeon at Northwestern Memorial Hospital in Chicago.

"The focus of my research has been studying how bone cells respond to stresses," he says.

He brings his experience to NASA at a key time, when it's working to fulfill the new Vision for Space Exploration. The vision calls for NASA to focus its research efforts on studying the effects of long-duration space flight. "One problem when it comes to living and working in space is bone loss. I'm interested in looking at ways of preventing that," he says.

In his medical practice, Dr. Satcher treats patients who suffer from cancer in their arms and legs. He teaches doctors-in-training and graduate students as well. "The questions we're interested in are how the skeleton responds to external forces and how cancer spreads to the skeleton.

NASA: Bobby Satcher, M.D.