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21 December 2015Reputable source · 2 sourcesWell documented

SpaceX lands an orbital rocket booster for the first time

A Falcon 9 first stage flies itself back to a landing pad instead of falling into the ocean

On the timeline · around 21 December 2015 · The Commercial EraThe Commercial EraSpaceX lands an orbital rocket booster for the first time20132014201520162017201820192020

Quick facts

Company
SpaceX
Landing site
Landing Zone 1, Cape Canaveral
Mission
Orbcomm-2 (Falcon 9)
Significance
First landing of an orbital-class booster

What happened

On 21 December 2015, the first stage of a SpaceX Falcon 9 rocket returned from orbital launch velocity and landed upright at Landing Zone 1, Cape Canaveral Air Force Station, after delivering a batch of Orbcomm satellites to orbit. It was the first time any company had recovered a rocket stage that had actually reached the speed and altitude of an orbital launch, as opposed to the shorter, lower suborbital hops other companies had landed previously. The booster used its engines to perform a boostback burn, reenter the atmosphere, and land vertically on legs at a pad near its original launch site, rather than expending itself in the ocean as every prior orbital rocket stage had done.

Why it matters

The landing proved the central engineering premise behind SpaceX's push for reusability, that an orbital-class booster could survive reentry and touch down intact, setting up the first actual reflight of a recovered booster fifteen months later and, eventually, routine booster reuse across the entire Falcon 9 fleet.

How we know

Space.com's contemporary report on the landing documents the date, location, and its status as the first successful landing of an orbital-class rocket stage, matching the mission timeline SpaceX itself published at the time.

Sources

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SpaceX lands an orbital rocket booster for the first time · Space Exploration · SourcedStory