Featured image from “New Thinking Allowed”
The double-ringed Vivaldi Crater, on the planet Mercury, spans 215 kilometers and was imaged by the BepiColombo spacecraft (a joint project of the European and Japanese space agencies) on a flyby earlier in September. Double-ringed craters are rare, and the cause of the inner rings remains a topic of research. The BepiColombo spacecraft will eventually orbit around Mercury, the Solar System’s innermost planet.

Image Credit: ESA, JAXA, BepiColombo, MTM