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.
Challenger explosion remembered: Look back at the News' 1986 space shuttle disaster report. Nasa handout picture dated November 1985 shows the crew of the doomed Challenger space shuttle. This report originally appeared in the Jan. 29, 1986 edition of the Daily News -- the day following the space shuttle disaster. Man's dream of conquering space died a little yesterday.