balloon

Wellington:  After several unsuccessful attempts, NASA finally launched its football-stadium-sized, heavy-lift super pressure balloon (SPB) from Wanaka, New Zealand, on Tuesday.The super-pressure balloon test flight is now on a mission designed to run 100 or more days, NASA said in a statement. "Following our 2015 and 2016 New Zealand missions, we've learned key lessons on the balloon design that have gone into perfecting the technology for this year's flight," said Debbie Fairbrother, NASA's Balloon Programme Office chief. "I'm very proud of the team that delivered us to this point and I'm hopeful that third time's the charm for realising 100 days of…