Astronomers get radio protection.Studying the universe at millimeter-wave energies is one of the last frontiers in astronomy. The cosmos pours out most of its energy at these radio wavelengths. Observers can record the birth pangs birth pang n. 1. One of the repetitive pains occurring in childbirth. Often used in the plural. 2. birth pangs Difficulty or turmoil associated with a development or transition: of stars in our own galactic ga·lac·tic adj. 1. Relating to milk. 2. Promoting the flow of milk. galactic 1. pertaining to milk. 2. galactagogue. neighborhood as well as the faint glow from the most distant objects in the universe. Last month, astronomers who focus on millimeter-wave emissions won protection for the signals they measure. At the World Radiocommunication Conference World Radiocommunication Conference (WRC) is organized by ITU to review, and, if necessary, revise the Radio Regulations, the international treaty governing the use of the radio-frequency spectrum and the geostationary-satellite and non-geostationary-satellite orbits. in Istanbul, Turkey, delegates agreed to reserve for astronomers nearly all microwave frequencies between 71 and 275 gigahertz that can pass through Earth's atmosphere “Air” redirects here. For other uses, see Air (disambiguation). Earth's atmosphere is a layer of gases surrounding the planet Earth and retained by the Earth's gravity. It contains roughly (by molar content/volume) 78% nitrogen, 20.95% oxygen, 0.93% argon, 0. . Millimeter-wave telescopes are vulnerable to interference from satellite signals at these frequencies. Although commercial satellites don't currently broadcast at these high frequencies, now astronomers won't have to worry about interference from these or other devices in the future. The new agreement is "a win for millimeter-wave science," says delegate John Whiteoak of the Australia Telescope National Facility The Australia Telescope National Facility (ATNF) is a division of the Commonwealth Scientific and Industrial Research Organisation (CSIRO) of Australia, and is a government-operated research facility dedicated to radio astronomy. in Epping. |
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