The photograph below was the Astronomy Picture of the Day on June 16th. I have been asked what the unusual object in the photo is. I have not a clue. Would any of our readers like to take a guess? Below is the basic information about the photo taken from the site that posted it.
Explanation: To prepare for the Apollo landings, five Lunar Orbiter spacecraft were launched during 1966 and 1967 to gather detailed images of our fair planet's large, natural satellite. Dramatic views returned by the spacecraft cameras included this stark moonscape. The mosaic of 93 kilometer wide impact crater Copernicus features central peaks rising above the crater floor and rugged crater walls.