Throughout the moon's rotation most of the south-pole-aitken basin stays in what?

Why cant you have re-entry at slower speeds through the use of anti thrust jets thereby avoiding Columbia like disasters? How can you find xenon? How many constellations are their and what are their names? Who was the first discovered the bell? Why are craters named on the moon? When dropped from the same height why does a flat sheet of paper fall more slowly than the same sheet when it is tightly crumpled into a ball? How long does it take to get to Saturn with a space shuttle? What is the name of the sun being very far away? How does refracted light cause a rainbow to appear? Who did most people believe john Dalton Democritus or Aristotle? Why is the crescent moon on the c ration box? How many engines did Apollo 11 have? What type of weather is associated with nimbus clouds? What is the maximum distance between the Moon and Earth called? Which planet has 11 rings? How long does it take time for the space shuttle from atmospheric reentry to landing? How high is mt everest in inches today? Did The Chinese developed a way to move the sails of ships that allowed ships to sail into the wind for the first time? If you jumped from space back to the earth how long would it take? What star cycle is betelgeuse in?