Blood Doesn't Turn Blue When You Run Out of Oxygen
Human blood can never be blue. When your body runs out of oxygen, it actually turns a much darker red because of the concentration of halted red blood cells. The reason you see blue in your veins is actually because of the many layers of pigment in your skin.
The Moon is Not Close to the Earth
Even though the moon can sometimes seem like it's close enough to reach up and grab, it is actually very far away. The moon is roughly 239,000 miles from the Earth. Theoretically, if a standard airplane was to try and fly to the moon at full speed, it would take 17 days to reach its destination.