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New Hampshire teacher Christa McAuliffe and other astronauts were honored Thursday by NASA during its Day of Remembrance.

NASA's annual Day of Remembrance honors fallen astronauts with ceremonies nationwide, including wreath-laying at Arlington National Cemetery led by Jim Free and events at various NASA centers.

An annual memorial was held at the Kennedy Space Center Visitor Complex. Every fourth Thursday in January, NASA remembers fallen astronauts.

The space agency will honor all its fallen members from the crews of Apollo 1 and space shuttles Challenger and Columbia.