1975

Saturn V Rocket: Due to a malfunction, the Saturn V Rocket burned unusually high in the atmosphere, above 300 km. This burn produced “a large ionospheric hole” (Mendillo, M. Et al., Science p. 187, 343, 1975). The disturbance reduced the total electron...

1954

Atomic scientist Robert J. Oppenheimer [the Father of the Atomic Bomb] loses his US security clearance. Guatemala – CIA overthrows the democratically elected Jacob Arbenz in a military coup. Arbenz has threatened to nationalize the Rockefeller-owned United Fruit...