T1H-1

Overview

Destination: Suborbital
Mission: Test Flight

Suborbital Launch Complex 3B Esrange Space Center
T1H - Launch Complex 3 Landing Pad

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

Updates

Nosu • Sept. 16, 2025, 9:15 a.m.

Adding launch


Themis Demonstrator

Family:
Configuration:

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.

See Details
Specifications
  • Stages
    1
  • Length
    28.0 m
  • Diameter
    3.5 m
  • Fairing Diameter
  • Launch Mass
    170.0 T
  • Thrust
    980.0 kN
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

Booster Info


T1H


Type: Core
Flight Proven: No

Landing Information

The Themis T1H demonstrator will attempt a soft vertical landing back at its launch site.

Landing Attempt Confirmed

ArianeGroup

ArianeGroup

(AG)

CEO: Martin Sion Founded: 2015 Successes: 0 Failures: 0 Pending: 0

Agency Type:

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.

INFO WIKI

Related News

European Spaceflight

ArianeGroup Completes Themis Integration Ahead of Combined Tests

ArianeGroup has announced that the first Themis reusable rocket demonstrator has been fully integrated and is on its own four legs on a launch pad in Sweden. The demonstrator will now be put through a combined test campaign before an initi…

Arstechnica

After a very slow start, Europe’s reusable rocket program shows signs of life

Although Themis is making progress, the program is several years behind schedule.

ESA

Themis stands on the launch pad

From the ESA Blogs.

Esrange Space Center

Launch Complex 3B


Falcon 9
Success
2 days, 6 hours ago
Starlink Group 11-30
Space Launch Complex 4E - Vandenberg SFB, CA, USA

A batch of 28 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.


Falcon 9
Success
3 days, 7 hours ago
Starlink Group 6-79
Space Launch Complex 40 - Cape Canaveral SFS, FL, USA

A batch of 29 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.


Long March 3
Success
4 days, 4 hours ago
TJSW-21
Launch Complex 2 (LC-2) - Xichang Satellite Launch Center, People's Republic of China

Chinese classified satellite claimed to be for communication technology test purposes. Actual mission not known.


Falcon 9
Success
4 days, 11 hours ago
Starlink Group 6-78
Launch Complex 39A - Kennedy Space Center, FL, USA

A batch of 29 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.


Electron
Success
5 days, 2 hours ago
Follow My Speed (BlackSky Gen-3 3)
Rocket Lab Launch Complex 1A - Rocket Lab Launch Complex 1, Mahia Peninsula, New Zealand

Note: Payload and customer identities were not publicly annouced, identification is per USSF orbital data. 3rd of the BlackSky Gen-3 high resoluti…


Long March 2
Success
6 days, 11 hours ago
Shijian 30 A-C
Launch Area 4 (SLS-2 / 603) - Jiuquan Satellite Launch Center, People's Republic of China

3 Chinese satellites described as for “Space Environment Measurements” purposes. Actual usage not known.


Falcon 9
Success
6 days, 15 hours ago
Starlink Group 6-94
Space Launch Complex 40 - Cape Canaveral SFS, FL, USA

A batch of 29 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.


Electron
Success
1 week ago
Prometheus Run (VAN)
Rocket Lab Launch Complex 2 (Launch Area 0 C) - Wallops Flight Facility, Virginia, USA

Sub-orbital launch under Rocket Lab’s Hypersonic Accelerator Suborbital Test Electron (HASTE) program. This mission was lead by MDA and deployed a…


Falcon 9
Success
1 week, 1 day ago
Sentinel-6B
Space Launch Complex 4E - Vandenberg SFB, CA, USA

The Sentinel-6 Michael Freilich (launched November 2020) and Sentinel-6B make up the Sentinel-6 mission, also known as Jason Continuity of Service (…


Falcon 9
Success
1 week, 3 days ago
Starlink Group 6-85
Space Launch Complex 40 - Cape Canaveral SFS, FL, USA

A batch of 29 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.