NASA will pay $500,000 to whoever can figure out how to grow fresh food in space
Russian cosmonaut Alexey Ovchinin holds a watermelonPhoto: MAXIM SHIPENKOV / Stringer (Getty Images)Being an astronaut sounds really stressful. You have...
Russian cosmonaut Alexey Ovchinin holds a watermelonPhoto: MAXIM SHIPENKOV / Stringer (Getty Images)Being an astronaut sounds really stressful. You have...