The origin of lunar crater rays - ScienceDirect
The origin of lunar concentric craters - ScienceDirect
The mystery of crater rays may finally be coming to a close
Ray system of Tycho lunar crater, 1900 - Stock Image - C048/5366 - Science Photo Library
Complex crater - Wikipedia
The length of lunar crater rays explained using secondary crater scaling - ScienceDirect
Crater Ray SpringerLink
Cool Cold Spots Lunar Reconnaissance Orbiter Camera
PDF) LRO-LAMP detection of geologically young craters within lunar permanently shaded regions
The length of lunar crater rays explained using secondary crater scaling - ScienceDirect