Share this on WhatsApp 1970 A Lunar “Tablespoonful” “In the broad, flat lunar maria, or ‘seas’ (such as Mare Tranquillitatis, the site of the Apollo 11 manned landing), the depths of craters that have reached bedrock indicate a regolith thickness of from five to 10 meters. Thus the Apollo 11 astronauts Neil A. Armstrong and … Continue reading 50, 100 & 150 Years Ago: August 2020