| |
| | Sputnik |
 | | “Sputnik” (satellite) was the abbreviated Western name for these spacecraft, known in Russia generically as Iskusstvenniy Sputnik Zemli (Artificial Earth Satellite). |
 | | Sputniks 1, 2, and 3 were launched during the International Geophysical Year, a period lasting from Jul. 1, 1957, to Dec. 31, 1958. |
 | | The spacecraft known in the West as Sputnik 4, 5, 6, 9, and 10 were announced at the time in Russia as Korabl-Sputnik 1, 2, 3, 4, and 5. |
| www.daviddarling.info /encyclopedia/S/Sputnik.html (310 words) |
|