The Apollo 11 crew ate four meals on the moon's surface, and their excrement is still present in the lunar module they left behind. Astronauts are still unable to eat anything they want whenever they want because to dietary constraints and storage concerns. However, they do have some choice in what they eat now.
Food on the Moon has been claimed many times over the years, but it's not clear where this claim comes from. Some say that astronauts consumed nutrients stored in their bodies for later use, while others say they actually grew foods in labs back on Earth then transported them to the Moon. Either way, we know that they ate something every day for three days after arriving at the Moon and then returned home again.
Astronauts usually bring food with them when they go into space because it's easier to transport than make in-orbit purchases. The first men on the Moon didn't have much choice in the matter: They were given specific tasks to complete during each mission and were provided with resources necessary for a successful completion of those tasks. For example, they were given sleeping bags and tents for shelter and heat protection clothing for warmth.
The second group of men on the Moon were known as "stay-at-home" astronauts because they were given freedom of movement and authority over their own activities during certain phases of the missions.
Meal A, the first scheduled meal to be eaten on the Moon, turned out to contain bacon squares, peaches, sugar cookie cubes, pineapple grapefruit drink, and coffee. After landing at the Sea of Tranquility, they ate history's first supper on the moon, somewhat ahead of schedule. The meal was served by Commander Neil Armstrong.
Here is how it was prepared for consumption: One slice of bread was cut into cubes and added to a plastic food bag containing the fruit and cookies. A cup of coffee was made with powdered milk using an electric pot. This was the only meal planned for the crew while they were on the lunar surface; however, they did have some of their equipment available for use if needed. If anything else was desired, it could be requested by radio from Earth during next day's mission control conference call.
When asked about what he would eat if given the choice between home cooking and space food, Armstrong said he would choose the latter because "there's no point in denying it, we're off planet and we're not going back any time soon."
However, if forced to choose between the two options, he said he would probably go with the former because it was "good to have a place where you can come and relax and have a good meal after a hard days work."
Neil Armstrong and Buzz Aldrin ate two meals a day while on the moon's surface, according to NASA. The first course consisted of bacon squares and peaches, followed by sugar cookies for dessert. The second course included beef stew and cream of chicken soup, as well as date fruit cake for dessert.
Armstrong and Aldrin wore space suits during their stay on the lunar surface, which contained food bars to provide them with energy. The men drank water from canteens attached to their spacesuits.
NASA said that because of the lack of oxygen on the Moon, the crew members only lasted about four hours outside their modules. Therefore, they had to stop taking measurements after getting back into their ships to avoid becoming unconscious.
Overall, the mission was a success, and it has since become a historic site. The Apollo 11 command module is on display at the National Air and Space Museum in Washington, D.C.