Source: News Bharati English17 May 2016 12:55:58

Wanaka, May 17: In its fifth attempt NASA successfully launched a super pressure balloon from New Zealand's South Island Wanaka airport to conduct near-space scientific investigations.  

As the last bids thwarted by bad weather the 532,000 cubic metres balloon is expected to circumnavigate the globe about the southern hemisphere's mid-latitudes once every one to three weeks, depending on wind speeds in the stratosphere, NASA said. 
Long-duration balloon flights at constant altitudes play an important role in providing inexpensive access to the near-space environment for science and technology.The aim is for it remain airborne for more than 100 days.

According to NASA the balloon's operational float altitude is 33.5 kms and it will be visible from the ground, particularly at sunrise and sunset, in the southern hemisphere's mid-latitudes, such as Argentina and South Africa.

NASA's balloon experts at its Columbia Scientific Balloon Facility and NASA's Wallops Flight Facility, Virginia, will control balloon flight operations throughout the mission.