Themis is an ESA rocket prototype – a flagship European demonstrator for low-cost rocket recovery and reuse technologies. Powered by the reusable, methane-fuelled engine Prometheus, it is developed with ArianeGroup as prime contractor and building on decades of European research and experience in rocketry and space operations, Themis is designed to launch, land vertically and live on for another mission.
Specifications
- Thrust
- 980 kN
- Height
- 28 m
- Diameter
- 3.5 m
- Launch mass
- 170 t
- Stages
- 1
- Launch cost
- —
- LEO capacity
- —
- GTO capacity
- —
- GEO capacity
- —
- SSO capacity
- —
Vehicle specifications from Launch Library; blanks are unpublished figures.
Flight record
Flights
0
Launches with a definitive outcome
Success rate
—
0 of 0
Current success streak
0
Landings
0
0 attempts · 0 droneship / 0 RTLS
Fastest turnaround
—
Between consecutive booster flights
Counted from padside's own launch record — the same basis as the Stats page.
Launches
Next: Themis Demonstrator | T1H-1 — September 30, 2026
No completed launches on record yet.