Astronauts live a life very different from people on Earth, mainly due to zero gravity in space. Their diet and lifestyle are carefully planned to ensure they remain healthy and fit during missions.

Dining options might not be the first thing you think about when it comes to space launches, but it's a pretty important thing — and not just because astronauts need to sustain themselves in orbit.

Just in case people thought airline food was inedible: Astronauts on future missions to the Moon and Mars could subsist on a brand new “space food” that is concocted from thin air and urine, the ...