Earth Day: The best recipe for living in space borrows ideas from our planet

image of world map on a table. three eggs eggs sit to the left of north america. a bowl of grain is left of south america. on top of the border of europe and asia is a sieve with flower

NASA astronaut Christina Koch once shared her struggles with readjusting to life on Earth after living in space for nearly a year.

Koch broke the record for longest continuous space stay by a woman in 2019-2020, spending 328 days floating on the International Space Station. About three weeks after her Feb. 5, 2020 touchdown, she shared on Twitter: "I may be able to do more pull-ups than before flight, but standing with my eyes closed is still a challenge."