YES2
YES2 (Young Engineers Satellite 2) was a European Space Agency tether experiment carried on the Russian Foton-M3 spacecraft.
Key moments
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Watch this moment · 0:59
YES2 introduced as the longest tether spacecraft
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Watch this moment · 2:00
Photon Mail concept: tether swing to return a capsule
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Watch this moment · 4:55
Three hardware parts: Floyd, MASS and Fotonino
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Watch this moment · 7:00
Barber pole braking system for tether deployment
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Watch this moment · 8:12
Sensor power lost after about 8 km of deployment
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Watch this moment · 9:11
No signal from capsule; it is never recovered
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Watch this moment · 9:59
DIMAC accelerometer data shows full deployment to 31.7 km
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Watch this moment · 11:23
US Space Surveillance Network sees Foton climb about 1.3 km
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Watch this moment · 12:58
Capsule may lie in Kazakhstan with a $1,000 reward offer
Key facts
| Mission name | YES2 |
|---|---|
| Crew size | 0 |
| Outcome | Partial success |
Videos about this mission
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September 2026
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Dates are when each video was first published on YouTube.
Sources: The facts and written text on this page come from the 1 video on this page, by Scott Manley.
