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Piece of Challenger space shuttle discovered at bottom of Atlantic near Florida's coast

The discovery is one of the biggest pieces of the spacecraft ever found, a NASA official said.
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A section of the destroyed space shuttle Challenger was found at the bottom of the Atlantic Ocean off Florida more than three decades after it broke apart and killed all seven people aboard.

A television documentary crew looking for the wreckage of a World War II-era aircraft found the artifact when divers noticed a "large human-made object" partly covered by sand, NASA said in a news release Thursday.

Because of the artifact's proximity to the Florida Space Coast, as well as the construction of the object, the team contacted NASA.

The discovery is one of the biggest pieces of the spacecraft ever found, said Michael Ciannilli, a NASA official.

"Upon first hearing about it, it brings you right back to 1986," he said.

The shuttle broke apart just 73 seconds into its flight on Jan. 28, 1986. It disintegrated 46,000 feet above the ocean, off Cape Canaveral.

The mission, called STS-51L, was commanded by Dick Scobee and piloted by Michael J. Smith. Other astronauts were Ronald McNair, Ellison Onizuka, Judith Resnik, Gregory Jarvis and Christa McAuliffe, a high school social studies teacher in Concord, New Hampshire. She had been selected as the primary candidate for the NASA Teacher in Space Project in July 1985.

NASA said an agency investigation showed that unexpected cold temperatures affected "the integrity of O-ring seals in the solid rocket booster segment joints."

"While it has been nearly 37 years since seven daring and brave explorers lost their lives aboard Challenger, this tragedy will forever be seared in the collective memory of our country," NASA Administrator Bill Nelson said in a statement. "For millions around the globe, myself included, Jan. 28, 1986, still feels like yesterday."

The History Channel's documentary about the spacecraft airs Nov. 22.