Space Shuttle Columbia is launched on the 75th shuttle flight, staying in orbit for nearly 16 days. The crew attempts to deploy a tethered satellite experiment flown unsuccessfully in 1992, only to watch as the tether snaps with the satellite 12 miles away from the shuttle. The remainder of the flight is spent conducting planned material science experiments. Aboard Columbia for her 19th flight are Commander Andrew Allen, Pilot Scott Horowitz, Payload Commander Franklin Chang-Diaz, and mission specialists Maurizio Cheli, Jeffrey Hoffman, Claude Nicollier and Umberto Guidoni. To this day, video of the satellite floating in space after the tether failure is circulated as “proof” of the existence of UFOs.