Last year a lettuce on a board of the International Space Station (ISS) and this year - a flower. Thanks to astronaut Scott Kelly's successful attempt to grow the first ever flower in space. He grew Zinnias, a type of edible flower most commonly found in salads and could be the most beautiful of NASA's recent botanic endeavors.

And what's next? NASA's now hope is to repeat their success by attempting to grow tomatoes in 2018. Yes, there are other life forms in space! Good luck!