Comet Tails of the Expected

Comet Wild 2 compared to electrically machined surface
Comet Wild 2 compared to electrically machined surface

Specific predictions were made almost four years ago on this website about the possible effects to be observed in the Deep Impact experiment. Key predictions were that there would be a flash just before impact and that the outburst accompanying the event would be more energetic than expected from a mechanical collision. These predictions were…