Space Shuttle Challenger and transported to the silos for storage. Because of its early loss, "Challenger" was the only space shuttle that never wore the NASA "meatball" logo, and was never modified with the MEDS "glass cockpit". The tail was never fitted with a drag chute – it was fitted to the remaining orbiters in 1992. Also because of its early demise "Challenger" was also one of only two shuttles that never visited the Mir Space Station or the International Space Station – the other one being its sister ship "Columbia". Space Shuttle Challenger Space Shuttle "Challenger" (Orbiter Vehicle Designation: OV-099) was the
Space Shuttle mission is SPRA iteration 3.1 top risk contributors for STS-133: An internal NASA risk assessment study (conducted by the Shuttle Program Safety and Mission Assurance Office at Johnson Space Center) released in late 2010 or early 2011 concluded that the agency had seriously underestimated the level of risk involved in operating the Shuttle. The report assessed that there was a 1 in 9 chance of a catastrophic disaster during the first nine flights of the Shuttle but that safety improvements had later improved the risk ratio to 1 in 90. Below is a list of major events in the Space