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NASA's scientific balloons return to flight with Spring 2021 campaign

NASA's Scientific Balloon Program is kicking off an ambitious schedule of 18 flights in 2021 with their spring campaign from Fort Sumner, New Mexico, the program's first major flight campaign since the COVID-19 pandemic began.
For this first campaign of 2021, the team is supporting a multitude of science and technology demonstration missions with six balloon flights scheduled from the end of April through mid-June.
"We have a packed scheduled for 2021 as we work to launch science and technology missions postponed due to the pandemic along with other planned missions," said Debbie Fairbrother, Scientific Balloon Program chief at NASA's Wallops Flight Facility in Virginia. "Our team has worked very hard to train and prepare for this surge in flight operations, and we're all excited to return to flight."
One of the missions, scheduled for flight in June, is the second demonstration flight of the Balloon-Borne Cryogenic Telescope Testbed, or BOBCAT. This mission will test technologies to fly a cold observatory telescope on a balloon to near-space altitudes. The technical challenge the mission is trying to address is cooling the telescope's mirrors using cryogen inside a dewar, a large vessel that can hold liquids at low temperatures.