AstronautAtlas
Search the complete archive…
Loading AstronautAtlas records
Program archive
International Geophysical Year
International Geophysical Year is explored here through 22 archived missions, from Vanguard TV-0 through Explorer 7, with the program’s spacecraft, people, milestones, and source-backed history connected along the way.
- Missions
- 22
- People
- 0
- Vehicles
- 20
Explore this program
Choose a path through the International Geophysical Year archive.
International Geophysical Year spacecraft
20 mission-specific spacecraft and test articles, plus 0 launch systems and shared hardware records.
Showing vehicles 1–12 of 20
Inflatable atmospheric-density and radar-tracking satelliteOctober 22, 1958Beacon 1
Beacon 1 was an early United States inflatable atmospheric-density and radar-tracking satellite developed for the Explorer program.
Inflatable atmospheric-density and radar-tracking satelliteAugust 14, 1959Beacon 2
Beacon 2 was an early United States inflatable atmospheric-density and radar-tracking satellite developed for the Explorer program.
Cosmic-ray and micrometeoroid satelliteMarch 5, 1958Explorer 2
Explorer 2 was an early United States cosmic-ray and micrometeoroid satellite developed for the Explorer program.
Radiation and micrometeoroid research satelliteMarch 26, 1958Explorer 3
Explorer 3 was an early United States radiation and micrometeoroid research satellite developed for the Explorer program.
Trapped-radiation research satelliteJuly 26, 1958Explorer 4
Explorer 4 was an early United States trapped-radiation research satellite developed for the Explorer program.
Trapped-radiation research satelliteAugust 24, 1958Explorer 5
Explorer 5 was an early United States trapped-radiation research satellite developed for the Explorer program.
Magnetospheric, solar, and Earth-imaging satelliteAugust 7, 1959Explorer 6
Explorer 6 was an early United States magnetospheric, solar, and earth-imaging satellite developed for the Explorer program.
Earth-radiation and space-environment satelliteOctober 13, 1959Explorer 7
Explorer 7 was an early United States earth-radiation and space-environment satellite developed for the Explorer program.
Earth-radiation and space-environment satelliteJuly 16, 1959Explorer S-1
Explorer S-1 was an early United States earth-radiation and space-environment satellite developed for the Explorer program.
Geodetic and space-environment research satelliteMarch 17, 1958Vanguard 1
Vanguard 1 was the second successful United States satellite and the first spacecraft powered by solar cells.
Geodetic and space-environment satelliteFebruary 5, 1958Vanguard 1A
Vanguard 1A was developed by Project Vanguard as a geodetic and space-environment satellite.
Experimental weather and Earth-science satelliteFebruary 17, 1959Vanguard 2
Vanguard 2 was developed by Project Vanguard as a experimental weather and earth-science satellite.