Themis Demonstrator | T1H-1
Themis Demonstrator · Esrange Space Center
Q4 2026

Operator file · FR-27
European Space Agency is a multinational launch operator based in France, founded in 1975. It has flown 7 launches under its own name. 6 succeeded and 1 failed, a success rate of 85.7%. Its next launch is Themis Demonstrator | T1H-1, from Launch Complex 3B, set for Q4 2026.
These are launches under ESA’s own name in The Space Devs’ Launch Library. They don’t count missions or payloads. A spacecraft that flew on someone else’s rocket counts for the operator that flew it.
An operator owns the rocket and runs the count, and the launch schedule filters by operator. A customer pays for the mission, supplies the payload and buys the ride. Some organisations are both. Below, ESA is counted in whichever role the current schedule gives it.
No scheduled flight names ESA with someone else flying it.
How we count it: a scheduled launch counts as a customer flight when this organisation’s name or abbreviation is in the launch name, mission name or programme, and someone else is flying it. We don’t search mission descriptions, and we only see the schedule as far as it goes, which is 2039-12-31 00:00:00Z. So treat both counts as a minimum.
The European Space Agency is an intergovernmental organisation of 22 member states. Established in 1975 and headquartered in Paris, France, ESA has a worldwide staff of about 2,000 employees. ESA's space flight programme includes human spaceflight (mainly through participation in the International Space Station program); the launch and operation of unmanned exploration missions to other planets and the Moon; Earth observation, science and telecommunication; designing launch vehicles; and maintaining a major spaceport, the Guiana Space Centre at Kourou, French Guiana.
Themis Demonstrator · Esrange Space Center
Q4 2026
The label on each flight says how exact its launch time is. If the date is only known to the month, you’ll see the month and no countdown. A weather go-probability only shows when Launch Library has one for that flight. EveryLaunch doesn’t work it out.
From NASA's public image library and Wikimedia Commons. Each photo shows the credit its licence asks for and links back to where it came from.
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