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High-altitude balloons or stratostats are usually uncrewed balloons typically filled with helium or hydrogen and released into the stratosphere, generally attaining between 18 and 37 km (11 and 23 mi; 59,000 and 121,000 ft) above sea level.
The Super-pressure Balloon-borne Imaging Telescope (SuperBIT) is a highly stabilized, high-resolution telescope that operates in the stratosphere via NASA's superpressure balloon (SPB) system. At approximately 35 km altitude above sea level, the football-stadium -sized balloon carries SuperBIT (at 3500 lbs) to a suborbital environment above 99. ...
During the day, CAM plants close stomata and use stored acids as carbon sources for sugar, etc. production. The C3 pathway requires 18 ATP and 12 NADPH for the synthesis of one molecule of glucose (3 ATP + 2 NADPH per CO 2 fixed) while the C4 pathway requires 30 ATP and 12 NADPH (C3 + 2 ATP per CO 2 fixed).
World View Enterprises, Inc., doing business as World View, is a private American near space exploration and technology company headquartered in Tucson, Arizona, founded with the goal of increasing access to and the utilization of the stratosphere for scientific, commercial, economic, and military [1] purposes.
USSR-1 on a 1933 postage stamp.Here the balloon is shown in low altitude configuration; in the stratosphere the envelope expanded into a nearly perfect sphere.. Auguste Piccard's high-altitude flights of 1930–1932 aroused interest of Soviet Air Forces and Osoaviakhim, the Soviet paramilitary training organization, as well as individual pilots, designers and flight enthusiasts.
The Columbia Scientific Balloon Facility (CSBF), established in 1961 and formerly known as the National Scientific Balloon Facility (NSBF), is a NASA facility responsible for providing launch, tracking and control, airspace coordination, telemetry and command systems, and recovery services for unmanned high-altitude balloons. Customers of the ...
Balloon-borne telescopes have the disadvantage of relatively low altitude and a flight time of only a few days. However, their maximum altitude of about 50 km is much higher than the limiting altitude of aircraft-borne telescopes such as the Kuiper Airborne Observatory and Stratospheric Observatory for Infrared Astronomy, which have a limiting altitude of 15 km. [1] [5] A few balloon-borne ...
A weather balloon, also known as a sounding balloon, is a balloon (specifically a type of high-altitude balloon) that carries instruments to the stratosphere to send back information on atmospheric pressure, temperature, humidity and wind speed by means of a small, expendable measuring device called a radiosonde.