Themis Demonstrator

Active Re-Usable

ArianeGroup (AG)

None

Description

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

Stages
1
Length
28.0 m
Diameter
3.5 m
Fairing Diameter
―
Launch Mass
170.0 T
Thrust
980.0 kN
Apogee (Sub-Orbital)
20.0 km

Family

Name
Themis Demonstrator
Family
―
Variant
―
Alias
―
Full Name
Themis Demonstrator

Payload Capacity

Launch Cost
―
Low Earth Orbit
―
Geostationary Transfer Orbit
―
Direct Geostationary
―
Sun-Synchronous Capacity
―

ArianeGroup

Commercial

CEO: Martin Sion

AG 2015

ArianeGroup (formerly Airbus Safran Launchers) is an aerospace company based in France. A joint venture between Airbus and Safran, the company was founded in 2015 and is headquartered in Issy-les-Moulineaux. It consists of three core arms: aerospace, defence and security.

Upcoming Spaceflights

Themis Demonstrator | T1H-1

ArianeGroup | France
Esrange Space Center
TBD June, 2026

Status: To Be Determined

Mission:

First low-altitude hop test of a Themis demonstrator, with a targeted altitude up to 100 m.

Suborbital T1H - Maiden Flight Launch Complex 3 Landing Pad

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