It’s about finding the cause and addressing and dealing with that.” Jonathan Clark was a flight surgeon in mission control at Johnson Space Center in Houston during the final Columbia mission.

NASA's Mission Control struggled with the question of whether to alert Columbia astronauts that the space shuttle was crippled on orbit as it began its doomed reentry. Wayne Hale, who later became ...

Mission Specialist Laurel B. Clark and Commander Rick D. Husband are seen near supportive equipment for experiments on the SPACEHAB Research Double Module aboard the space shuttle Columbia.

Over the course of the mission, planned for at least 28 months, millions of galaxies may be observed. The Galaxy Evolution Explorer was the first NASA mission to launch since the Columbia accident.

(CNN) — When NASA’s Columbia shuttle launched on January 16, 2003, it carried a crew of seven astronauts who had spent nearly three years getting to know one another before venturing on a 16-day ...