219 days, thousands of miles traveled, a trip to space, and returning to Earth proved to be too much for our Research Balloon Cactus. Although this is disappointing, it is not unexpected, as even our control was unable to survive such a long time without light or water. However, our Sounding Rocket sample not only survived, but thrived, and is still growing happily along with its control.
These experiments did answer our original question, namely, " if Texas Prickly Pear cactus (Opuntia engelmannii var. lindheimeri) can survive relatively unprotected space travel." The answer is yes. Texas Prickly Pear cactus can survive months away from light and water, being launched into space on a rocket, and returning tumultuously to Earth. However, we have discovered that flight in a research balloon, and possibly exposure to radiation, may kill cacti.
For as many answers as it gave us, this experiment has also raised new questions. Would a different species of cacti endure space travel better? Would transporting whole pads, along with implementing measures to prevent mold, save more samples? Can cacti be genetically engineered to better survive relatively unprotected space travel?
The questions are out there, and the Cactus in Space project is coming to a close. To whom it may concern, further research is required.
