At https://phys.org/news/2019-06-gravitational-dawn-dome-ceres-volcanic.html … gravitational data beamed back by the Dawn mission suggests the dome on Ceres is a mud volcano – a mix of salty brine and solids. Volcanism is perhaps the key to understanding this but it was thought, until now, that volcanism was absent on such a small planet as Ceres (or is it a large asteroid). Not only that but they think the dome may be of recent date. It is in fact a mountain, or volcano, 4km in height and 17 km across. Ceres has very few craters but it has a Mantle loaded with fluids – so it would seem.
At https://phys.org/news/2019-06-rare-superflares-day-threaten-earth.html … rare superflares could one day threaten the earth. Researchers claim it is a matter of when, not if – and they are talking about really massive superflares.
At www.sciencedaily.com/releases/2019/06/190610100620.htm … a moon survey detected an anomaly under the moon's largest crater. What does it mean? Well, we have several theories one of which is that metals from the impactor, an asteroid or comet fragment, are buried under the crater.