While watching the Apollo 11 documentary with my four year old, he asked about the "beep beep" alarm during the landing. I explained that it was the low-fuel al

While watching the Apollo 11 documentary with my four year old, he asked about the "beep beep" alarm during the landing. I explained that it was the low-fuel alarm. He gasped in shock and exclaimed: "How will they get back home to Earth?" That was impressive enough, but then he concocted a rescue mission where a rocket would rendezvous with them and refuel their ship so that they could get home. That's pretty much the current NASA plan for humanity's return to the Moon!