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Loading contentThe world's largest fully steerable radio telescope, a 100-metre dish in Green Bank, West Virginia.
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How Green Bank Telescope connects across Asteria Star — scientific, cultural, and astrological links are kept separate.
The barred spiral galaxy that contains the Solar System, the Sun, and all stars visible to the naked eye.
The NRAO operates major radio astronomy facilities for the US scientific community, including the VLA and (as a partner) ALMA.
Radio waves are the longest-wavelength light; radio telescopes study pulsars, galaxies, and the cold gas of the universe.
ALMA is an international radio observatory of millimeter and submillimeter antennas located on the Chajnantor plateau in the Atacama Desert of northern Chile.
Arecibo Observatory in Puerto Rico operated a 305-metre radio dish — for decades the largest single-dish radio telescope — until its collapse in 2020.
Cerro Tololo Inter-American Observatory in Chile is a NOIRLab site whose telescopes carried out the Dark Energy Survey.
The next-generation ground-based observatory for very-high-energy gamma rays, an array of imaging atmospheric Cherenkov telescopes being built across two sites — one in the northern hemisphere on La Palma and one in the southern hemisphere in Chile — to catch the faint blue flashes that gamma rays make in the atmosphere. The largest such observatory ever built.
A proposed United States third-generation gravitational-wave observatory with arms up to forty kilometres long — a scaled-up successor to LIGO that, with the Einstein Telescope, would open the distant gravitational-wave universe.
A proposed European third-generation gravitational-wave observatory, to be built underground in a triangle of ten-kilometre arms. Its far greater sensitivity would detect compact-binary mergers across most of the observable universe.
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Mission data, planetary science, space telescopes, and public-domain imagery.
Most NASA-produced imagery is in the public domain; individual items are checked for usage terms before publication.