Echo, Mars orbiter & Two Cosmonauts circle Earth @AmericanSpaceMuseum

Echo, Mars orbiter & Two Cosmonauts circle Earth @AmericanSpaceMuseum

Uploaded August 2026 | Updated September 2026, 1 week ago

Lots of space history today with the first communications satellite, Echo 1, two cosmonauts orbit Earth separately and a Mars orbiter launched--all on this date decades apart.

Echo, Mars orbiter & Two Cosmonauts circle Earth

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American Space Museum |

Echo, Mars orbiter & Two Cosmonauts circle Earth