Translation of "Kollisionstheorie" in English

Die Kollisionstheorie war noch immer problematisch.

The giant impact theory was still in trouble,

Also hielten wir weiter an der Kollisionstheorie fest.

So we were trying to rescue the giant impact theory.

Gab es Wissenschaftler, die eine Kollisionstheorie im Kern ablehnten.

there were scientists that wanted to reject the whole idea of the giant impact.