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Loading contentPalomar Observatory is an astronomical observatory in California, home to the historic 200-inch Hale Telescope.
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How Palomar Observatory connects across Asteria Star — scientific, cultural, and astrological links are kept separate.
The nearest large spiral galaxy to the Milky Way and the most distant object readily visible to the naked eye.
IPAC at Caltech provides science operations and data archives for many infrared and survey missions, including Spitzer and WISE.
Visible light is the band the human eye sees and the traditional domain of optical telescopes.
The near-infrared bridges visible and thermal infrared light, key for studying the early universe and exoplanet atmospheres.
The 200-inch Hale Telescope at Palomar was the largest in the world for decades and remains a workhorse of optical astronomy.
Fritz Zwicky was a brilliant, combative astrophysicist at Caltech. In 1933 he measured the motions of galaxies in the Coma cluster and concluded that vast amounts of invisible 'dark matter' must be holding them together — a finding ignored…
Maarten Schmidt cracked the mystery of quasars. In 1963 he realised that the strange spectrum of the radio source 3C 273 was ordinary hydrogen shifted far to the red, placing the object billions of light-years away — and meaning it shone…
Maarten Schmidt recognised that the puzzling radio source 3C 273 was extremely redshifted, placing it billions of light-years away and making it astonishingly luminous.
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.
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