What do astronauts eat on multi-year missions?
Astronauts must use dry and pre-packaged food to maintain operations. These meals are carefully planned to provide nutrients.Scientists love to plant trees on Mars
NASA has made many bold plans for the Mars program with the addition of self-propelled ships to the Martian surface by 2020 and will send manned spacecraft by 2030.Video: How the dinner changed over the last 100 years
There will be delicious dishes, which we now have almost no chance to re-enjoy.