September 26, 2022 was a historical date.
It was the first time that people have made permanent changes in the universe.
Didymos-Dimorphos are a double asteroid system about 11 million kilometres away from earth.
The impact of the NASA DART spacecraft on the asteroid moon Dimorphos decreased Dimorphos’s orbital period around asteroid Didymos by half an hour.
Now they have a double tail behind them consisting of the material blasted off from the impact.
Because of the gravitational forces acting between Dimorphos and Didymos, the mission also has an effect on the direction of motion of the asteroid pair as a whole.