The week of October 28 – November 3 takes us from Day 1 to Day 7. This week we will highlight Mare Crisium, viewable on Thursday evening. Mare Crisium: [NE/H15] On Day 4 the Sea of Crises, the first of
Multi-Ring Imprint Result of Moon Crater Mare Crisium
![Multi-Ring Imprint Result of Moon Crater Mare Crisium Multi-Ring Imprint Result of Moon Crater Mare Crisium](http://andrewplanck.com/wp-content/uploads/2019/10/Mare-Crisium-resulted-from-the-impact-of-a-large-meteor-3.9-billion-years-ago.-The-event-was-energetic-enough-to-leave-a-multi-ring-imprint.-750x350.png)