For those who want to take their ballooning to the next level, check out this awesome how to about zero pressure balloons and let us know what questions you may have! Thanks to our friends at Purdue Amet for putting this together!
What are zero pressure balloons you may ask? A simple overview is that whereas your traditional high altitude balloon continues to expand as it rises and eventually pops, a zero pressure balloon reaches equilibrium with the environment at a certain altitude and can float for long periods of time. This opens up a whole new frontier, though there are many new challenges as well!
Let us know if you're planning to fly one!