Space is not a human friendly place. It is a vacuum that will suck the life out you in about 14 seconds. In 1965, a NASA researcher was accidentally exposed to a near vacuum and his last conscious memories was the water on his tongue beginning to boil. Fortunately, he was saved and we were all taught a valuable safety lesson.
Radishes, on the other hand seem to do pretty well in space. In an attempt understand food in space, NASA scientists subjected an assortment of vegetables to the harsh vacuum of space. Lettuce, radishes, wheat and other veggies were pushed out an air lock and left to fend for themselves in space.
Suprisingly, after a full, horrible, 30 min. in space, not much had changed. When examined, the astro-veggies were pretty much intact and were even successfully replanted where they continued to grow. In fact, scientists could find no differences between the space salad and the control group who never left the safety of our atmosphere.
Scientists noted that the space veggies grew as normal right up until the time they were harvested a week later.
Thanks to Gizmodo for the heads up on this one.