The bronze medallion embedded in the pavement behind the Commercial Bank of Texas is easy to overlook. About the size of a DVD, it barely registers as a bump for the cars pulling into the drive-thru window. But it is there — engraved with the name of the space shuttle Columbia and the date five years ago Friday that the spacecraft exploded over the skies of eastern Texas.  

CAPE CANAVERAL, FL (AP) -- It was two years ago when seven astronauts were killed during the space shuttle Columbia disaster.
Section: Space Shuttle Columbia Tragedy 

CAPE CANAVERAL, FL (AP) -- NASA workers who launched Columbia into orbit, volunteers who rummaged the fields for the shuttle's remains and everyday supporters of the space program united Sunday on the first anniversary of the catastrophe - to mourn and to remember.
Section: Columbia Tragedy 

HOUSTON (AP) -- Johnson Space Center workers on Friday bowed their heads in silence and wiped away tears during a tribute to the seven astronauts who died during the space shuttle Columbia's final mission last year. 

KENNEDY SPACE CENTER, FL (AP) -- A year after Columbia disintegrated over Texas, pieces of the doomed space shuttle keep turning up. 

CAPE CANAVERAL, Fla. (AP) -- Shrink-wrap the external fuel tank. Insulate the tank on the inside rather than the outside to prevent chunks of foam from breaking off and striking the space shuttle, as happened with Columbia. 

WASHINGTON (AP) -- A simple foam paint brush that costs only pennies at hardware stores could be an essential tool in returning the space shuttle to orbit, NASA's administrator said Wednesday. 

WASHINGTON (AP) -- NASA has developed a "return to flight" plan for future shuttle missions - one that aims for a resumption of flights as early as next March. 

WASHINGTON (AP) -- Senators criticized NASA on Wednesday for not naming people personally responsible for the Columbia disaster and for giving an important new job to an official linked to decisions made in the space shuttle tragedy 

WASHINGTON (AP) -- The destruction of space shuttle Columbia and the death of its seven astronauts were caused by a NASA culture driven by schedule, starved for funds and burdened with an eroded, insufficient safety program, investigators said Tuesday.
Interactive: Space Shuttle Columbia
Section: Columbia Tragedy