We'll have some year notes:
Most orbital launches ever
Most humans in space at the same time (both orbit and suborbital at once)
Soviet Family Tree video

A memoriam for:
William Thornton
George Carruthers
Michael Collins
Allan McDonald
Glen de Vries

We'll say goodbye to the following bits of hardware / missions:
Suborbital Starships

Honorable Mentions:
Starship Stacked
Firefly Alpha Launch Attempt
SLS Stacked
Science missions launched (IXPE, LUCY, DART)

Question Title

1. What was the biggest spaceflight or space science event in 2021? Think in scale of long term importance, not necessarily just "cool"... think "IMPACTFUL"

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