Sputnik (1957) was
- Acheck_circle
The first artificial satellite, launched by the USSR; sparked U.S. concern about the 'space race' and education reform (NDEA)
- B
An American satellite launched to monitor Soviet weapons tests; it triggered the Cuban Missile Crisis and a U.S. naval blockade
- C
A planned Soviet city near the Arctic Circle built to house scientists working on early Cold War rocket programs
- D
A Soviet hydrogen-bomb test in Kazakhstan that prompted the U.S. to accelerate ICBM development and create NORAD
Explanation
Led to NASA's founding (1958) and increased federal funding for science education.