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[–]Cryogenicist 0 points1 point  (1 child)

How fast is it moving when the first stage turns around? I find it amazing that the first stage rockets can turn around, decelerate, and then return to the launch site.

[–]jardeon[S] 1 point2 points  (0 children)

From the SpaceX launch webcast, stage 1 is moving at over 4,000km/h when stage separation occurs.