The Moon
Where did the first moon craft “Eagle” land?
“Eagle” landed on Mare Tranquillitatis (the sea of tranquility) at a spot appropriately named “Tranquillity Base”.
What are crater lets?
Craterlets are tiny craters ranging in diameter from a few meters to about twenty kilometers. The Moon has plenty of such crater lets.
What are twin craters?
Twin craters are those that occur close together, sometimes separated and sometimes joined together. In some cases, one crater crosses the boundary of another crater causing damage to it. Since large craters have been formed earlier, it is usually the small ones formed later which intrude and do the damage.