Δαφνη Ευτυχια Αρθουρος

"We visit the Launch Control building, where on one wall of the seventies-style lobby are hung the mission patches of every human spaceflight that has ever been launched from here, 149 to date. Beneath each mission patch is a small plaque showing the launch and landing dates. Two of them -- Challenger's STS-51L and Columbia's STS-107 -- are missing landing dates, because both of these missions ended in disasters that destroyed the orbiters and killed their crews. The blank spaces on the wall where those landing dates should have been are discolored from the touch of people's hands. This would be unremarkable if this place were a tourist attraction, or regularly open to the public. But with the rare exception of Family Days, this building is open only to people who work here. In other words, it's launch controllers, managers, and engineers who have been touching these empty spaces with their hands, on their way to and from doing their jobs." -- Margaret Lazarus Dean, Leaving Orbit: Notes from the Last Days of American Spaceflight, 2015