Space Food

By the 1960s, NASA achieved an extraordinary technological feat by sending men into space. Yet one deceptively simple aspect of space travel took several more years to perfect: the food. Today most space food looks a lot like food here on the ground. What started out as tasteless paste squeezed out of a toothpastelike tube has come a long way from space exploration's early days. Astronauts are even getting treated to gourmet meals designed by celebrity chefs.

The biggest differences between space food and regular food are in the packaging and design. Space food must be carefully contained so it doesn't float around in the low-gravity (microgravity) environment.

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I got all my information on space food here: science.howstuffworks.com/space-food.htm