Sputnik 1, the first artificial satellite launched on October 4, 1957, was a 83.6-kg (184-pound) capsule. It achieved an Earth orbit with an apogee (farthest...
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February 25, 2026
Sputnik 1, the first artificial satellite launched on October 4, 1957, was a 83.6-kg (184-pound) capsule. It achieved an Earth orbit with an apogee (farthest...