The second flight of the space shuttle Atlantis was almost its last.

What was then NASA’s newest orbiter sustained severe damage to its fragile thermal protection system when it lifted off from Kennedy Space Center’s Launch Complex 39B on Dec. 2, 1988. But through a combination of military secrecy and plain old human misunderstanding, the problem went unaddressed until Atlantis returned to Earth four days later.

To read the rest of the article, click here.