01 / 16 SPUTNIK 1
In flight · Earth
A signal from orbit.
Sputnik becomes the first artificial satellite. Radio operators around the world can hear its transmissions: a human-made object is circling Earth.
Dated world view · no spacecraft route
CHARTING THE SOLAR SYSTEM
0% AN EXPEDITION THROUGH THE SOLAR SYSTEMLoading historical positions…
Sputnik becomes the first artificial satellite. Radio operators around the world can hear its transmissions: a human-made object is circling Earth.
Dated planetary view
No validated spacecraft route
Trajectory & coverage
No validated Sputnik 1 state-vector record is included. This is a dated view of Earth; no spacecraft orbit is invented.
JPL source All coverage notesTHE HUMAN JOURNEY
Follow a spacecraft. Witness an encounter.
1957 → 2021SELECT AN ENCOUNTER OR PRESS PLAY · EVENT SPACING IS NOT LINEAR