In which year were both the Chernobyl and Challenger Shuttle disasters?
Space Shuttle Challenger disaster cause to the accident. After the accident, NASA attempted to aim at a more realistic shuttle flight rate: it added another orbiter, "Endeavour", to the space shuttle fleet to replace "Challenger", and it worked with the Department of Defense to put more satellites in orbit using expendable launch vehicles rather than the shuttle. In August 1986, President Reagan also announced that the shuttle would no longer carry commercial satellite payloads. After a 32-month hiatus, the next shuttle mission, STS-26, was launched on September 29, 1988. Although changes were made by NASA after the "Challenger" accident, many commentators have argued that
Space Shuttle Challenger in 2003. The accident led to a two-and-a-half-year grounding of the shuttle fleet; flights resumed in 1988, with STS-26 flown by "Discovery". "Challenger" was replaced by "Endeavour", which was built from structural spares ordered by NASA in the construction contracts for "Discovery" and "Atlantis". "Challenger" was named after HMS "Challenger", a British corvette that was the command ship for the "Challenger" Expedition, a pioneering global marine research expedition undertaken from 1872 through 1876. The Apollo 17 lunar module, which landed on the Moon in 1972, also was named "Challenger". Because of the low production volume of orbiters, the Space Shuttle