Figure 7. One spiral by one-side fuel emission. A, the one spiral by SpaceX Falcon 9, photo was taken by Lance Godwin on Jun 5, 2020 in Australia; B, one spiral by Long March 2C rocket over the northwest Pacific on June 8, 2021; C, the galaxy NGC 4618 with only one spiral arm.

From

Spiral Arm Formation of Galaxies Through ROTASE Mechanism is Perfectly Demonstrated by Falling Rockets Venting Fuel

Hongjun Pan

International Journal of Physics. 2023, 11(4), 166-173 doi:10.12691/ijp-11-4-1