Big balloon

Unfortunately the launch of the NASA balloon was postponed because of high winds today. Going to try again tomorrow! Here is more info:

The flight is another test of the super pressure balloon (SPB) technology designed to support long duration science missions with flights of up to 100 days.
The SPB is an 18.8-million-cubic-foot (532,000-cubic-meter) pressurized flight vehicle designed to float at a constant density altitude despite the heating and cooling of the day-night cycle. This pressurization, coupled with the stratospheric conditions in the southern hemisphere, enables long-duration flights.