1882-1944 1904-1967 1908- 1908-2003 1910-1995 1956-1958 20thcentury accidents aircraftaccidents airplanes armsrace arthurstanley asteroids astronautics astrophysicists astrophysics atomicbomb ballisticmissiledefenses biography blackholes(astronomy) chandrasekhar decisionmaking drama dvd-videodiscs eddington edward extraterrestrialbeings governmentpolicy greatbritain history human-alienencounters india insects interplanetaryvoyages kiribati military militarypolicy nuclearaccidents nuclearweapons operationgrapple oppenheimer palomares palomaresregion physicists physics politics politicsandgovernment quantumtheory relativity(physics) science searchandrescueoperations ships skeleton soldiers spacevehicles spaceweapons spain systemsengineering teller testing unitedstates wz100t274m2001