The bottom of Earth’s oceans contain debris from nearby supernovae that swept past Earth millions of years ago. Today’s paper investigates whether we can use this evidence to triangulate where in the Milky Way these supernovae went off.
How good are citizen-scientists at characterizing crater densities and size distributions on the lunar surface? For that matter how good are the experts? Today’s study attempts to answer these questions by having a group of experts analyze images of the Moon from the Lunar Reconnaissance Orbiter Camera.
I’m going to go ahead and give away the punchline: the answer to this post’s title is, “If your source is within 8 degrees of the Moon, quite probably.” — at least according to this paper’s authors. Read on to find out why!