NASA pays tribute to crew of 'Apollo 1' tragedy
NASA marked the 50th anniversary of its fatal Apollo 1 launchpad fire with the first public display of the scorched hatch in Florida. The hatch had trapped three astronauts inside the spaceship's cockpit during a routine pre-launch test on January 27, 1967. NASA later made dozens of design changes leading to the historic Apollo 11 moon landing in July 1969.