How many stages did Explorer 1 have?
Launched late on 31 January 1958 (10:48 p.m. EST, or 03:48 UTC on 01 February) on an Juno-1 rocket (adapted Jupiter-C), Explorer 1 carried instrumentation for the study of cosmic rays, micrometeorites, and for monitoring of the satellite’s temperature. The Juno-1 launch vehicle consisted of four propulsive stages.
When did U.S. launch Explorer 1?
Explorer 1 was the United States’ first satellite in space. The 1958 launch of the satellite — twice the size of a basketball — was an important moment for the country, as the Space Race with the Soviet Union was just beginning.
Who was involved in Explorer 1?
Russia had launched Sputnik 1, the world’s first artificial satellite, on October 4, 1957. The U.S. quickly launched Explorer 1 in response. William Hayward Pickering led a team at the Jet Propulsion Laboratory (JPL) that designed and built Explorer 1 in under three months.
How long did Explorer 1 last?
|Harvard designation||1958 Alpha 1|
|Mission duration||120 days (planned) 111 days (achieved)|
What was the big discovery associated with the Explorer 1?
James Van Allen’s discovery of radiation belts around Earth held in place by the planet’s magnetic field. The findings were later named Van Allen belts in honor of their discoverer. The primary science instrument on Explorer 1 was a cosmic ray detector designed to measure the radiation environment in Earth orbit.
Why was the Explorer 1 Important?
Explorer 1 became the first successfully launched satellite by the United States when it was sent to space on January 31, 1958. The primary science instrument on Explorer 1 was a cosmic ray detector designed to measure the radiation environment in Earth orbit.
When did Laika go to space?
Laika, the dog who became the first living creature sent into space, aboard Sputnik 2, November 1957.
Did Yuri Gagarin land on the moon?
Gagarin has been honoured on the Moon by astronauts and astronomers. During the American space programme’s Apollo 11 mission in 1969, astronauts Neil Armstrong and Buzz Aldrin left a memorial satchel containing medals commemorating Gagarin and Komarov on the Moon’s surface.