During the rehearsal, the rocket engine was ignited while securely mounted to a test stand or test platform.
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Ariane 6 was first scheduled to launch four years ago.

The rockets previous hot-fire test, in June, ended in failure.
It has been attracting commercial contracts, including 18 launches for Amazons Kuiper broadband megaconstellation project.
The next test, of the upper stage, is set to take place this December.

Story bySion Geschwindt
Sion is a freelance science and technology reporter, specialising in climate and energy.
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