From 1veritasium, 2veritasium, or sciencium.

A study just published reveals the moon experienced a dramatic increase in cratering rates about 300 million years ago. This corroborates evidence of a similar increase in Earth impacts.
The paper is: The Earth and Moon impact flux increased at the end of the Paleozoic
Sara Mazrouei, Rebecca R. Ghent, William F. Bottke, Alex H. Parker, Thomas M. Gernon
http://science.sciencemag.org/content/363/6424/253.editor-summary

DATA BY MAZROUEI ET ALL (SCIENCE 2019; VIDEO BY SYSTEM SOUNDS

Special thanks to Prof. David Paige