The complex choreography behind Europe’s most powerful rocket launch
Building the heavy-lift version of Ariane 6 is a high-stakes assembly of precision engineering. From the arrival of the central core to the attachment of four massive boosters, every step is a critical milestone in a mission to deploy a massive satellite constellation.
The assembly of the heavy-lift Ariane 6 variant at the Europe’s Spaceport in French Guiana is a meticulous process of vertical integration. The sequence began on 21 January 2026, when the rocket's central core arrived at the launch pad. On that same day, technicians successfully raised the core into an upright position and secured it onto the launch table. The following day, 22 January, saw the intensive addition of the propulsion units, as engineers attached the first, second, third, and finally the fourth booster to the main structure.
Once the primary propulsion system was complete, the focus shifted to the payload. On 9 February, the upper section of the rocket was integrated, carrying a significant cargo: 32 satellites destined for Amazon’s Leo constellation. This stage of the assembly is vital for ensuring the structural integrity of the vehicle before it faces the extreme stresses of ascent.
The launch day itself involved a dramatic reveal. The mobile hangar, which protects the rocket from the elements, was rolled away to expose the Ariane 6 to the sky. The liftoff, operated by Arianespace, took place during the afternoon, specifically at 13:45 local time (which corresponds to 16:45 GMT and 17:45 CET) on 12 February. The mission was a success, with the separation of the final satellites occurring 114 minutes after the initial ascent, successfully placing the Amazon constellation into low-Earth orbit.
Source: Preparing first Ariane 6 with four boosters and liftoff
