Trade Challenger

The Challenger space shuttle disaster was a fatal accident in the U.S. space program on January 28, 1986, when the space shuttle Challenger (OV-099) separated 73 seconds into its flight, killing all seven crew members on board. The crew consisted of five NASA astronauts and two payload specialists. The mission was named STS-51-L and was the tenth flight of the Challenger orbit. spacecraft disintegrated over the Atlantic Ocean, off the coast of Cape Canaveral, Florida, at 11:39 .m. EST (16:39 UTC). The car's disintegration began after a detailed failure of its right-hand steel rocket booster (SRB) at take-off. The cause of the failure was the failure of the O-ring seals used in the joint that were not designed to deal with the unusually cold conditions that existed at this launch. The failure of the seals caused a breach of the SRB joint, allowing the burning gas compressed from inside the solid rocket engine to reach the outside and compromising the common attached attached sRB and external fuel tank. This separated the joint attachment of the right field from the SRB and the structural failure of the outer tank. Aerodynamic forces dispersed orbital vehicle