heart murmur a sound additional to the normal heart sounds, heard on auscultation of the heart. Many murmurs are of no significance (innocent, physiological murmurs), particularly in young children, or due to increased blood flow through the heart during exercise, or in pregnancy.
Columbia Space Shuttle Disaster. On February 1, 2003, the space shuttle Columbia was returning from its 28th mission when, 16 minutes to touchdown, the shuttle incinerated and broke apart over Texas. Communication between the Columbia crew and Mission Control captures the last moments of the flight.
As MMT Chairman Linda Ham famously said at one point, it's not really a factor during the flight because there is not much we can do about it.. Columbia Space Shuttle debris lies on the floor of the RLV Hangar May 15, 2003 at Kennedy Space Center, Florida. NASA/Getty Images. Ham later came under intense criticism during the course of the accident investigation for her quick, seemingly uncritical acceptance of the foam strike analysis.