NASA Astronaut Mike Fincke retires, logging 549 days in space

Mike Fincke, the NASA astronaut with the fourth highest accumulated space time — at 549 days — has retired, the agency announced Wednesday. Fincke flew four missions with the agency and embarked on over 48 hours of space walks, according to NASA. Months before his retirement, he also became the first astronaut in NASA's history...

Mike Fincke, the NASA astronaut with the fourth highest accumulated space time — at 549 days — has retired, the agency announced Wednesday. Fincke flew four missions with the agency and embarked on over 48 hours of space walks, according to NASA. Months before his retirement, he also became the first astronaut in NASA's history...