The Moon’s freshest craters are recognisable by bright rays of newly excavated rock and dust, which space weathering gradually darkens—and the new 222-metre McGetchin crater is so fresh that its ejecta still gleams, having formed sometime between 11 Ap - Space Daily

The bright mark that stopped image specialist Robert Wagner during a routine data check was not the crater itself. It was debris thrown across the Moon when an asteroid or comet fragment struck the s…