1) Astronomical event
Found on
https://www.crosswordclues.com/clue/impact-event
An impact event is a collision between celestial objects causing measurable effects. Impact events have physical consequences and have been found to regularly occur in planetary systems, though the most frequent involve asteroids, comets or meteoroids and have minimal impact. When large objects impact terrestrial planets like the Earth, there can ...
Found on
http://en.wikipedia.org/wiki/Impact_event
No exact match found.
