"Cut off from civilization, we were dependent on ourselves and on each other. We had to perform any work that needed doing and fix anything that broke. All we had was the material contained in the storage unit dubbed the “sea can.” The nearest supermarket was months away. We received news “from Earth” electronically—with a 20-minute delay. That is about how long it takes for signals to travel the maximum distance of 240 million miles between the two planets."