First Flower Blooms in Space, Key to Living on Mars

Astronaut Scott Kelly tweeted a photo of the first flower to successfully bloom in space. But it wasn’t easy to get to this point.

NASA astronaut Scott Kelly took this selfie with the second crop of red romaine lettuce in August of 2015. Credits: NASA

Mold initially grew on the plant in pillow E in the bottom left corner of the plant mat. NASA