Greatest Telescopes & Observatories
Telescope↕ | Type↕ | Location↕ | Launched/Built↕ | Greatest Discovery↕ |
|---|---|---|---|---|
James Webb Space Telescope (JWST) | Infrared Space | L2 Point (1.5M km) | 2021 | Deepest infrared images ever, early galaxies forming 300M years after Big Bang, exoplanet atmospheres |
Hubble Space Telescope | Optical/UV Space | Low Earth Orbit | 1990 | Deep Field image (10K galaxies in a pinpoint), age of universe (13.8B years), dark energy acceleration |
Very Large Telescope (VLT) | Optical Ground | Atacama Desert, Chile | 1998 | First direct image of an exoplanet (2004), tracked stars around Milky Way's black hole |
ALMA | Radio Array | Atacama Desert, Chile | 2011 | Protoplanetary disks showing planet formation, first image of a black hole (with EHT collaboration) |
Event Horizon Telescope (EHT) | Radio Array (global) | Multiple sites worldwide | 2017 (first observation) | First image of a black hole (M87*, 2019), confirmed Einstein's general relativity predictions visually |
Arecibo (collapsed 2020) | Radio | Puerto Rico | 1963 | First binary pulsar (Nobel Prize), SETI searches, tracked asteroids, Golden Eye/Contact filming, collapsed tragically |
Chandra X-ray Observatory | X-ray Space | Elliptical orbit | 1999 | Dark matter evidence from galaxy cluster collisions, supernova remnants in unprecedented detail |
Keck Observatory | Optical Ground | Mauna Kea, Hawaii | 1993 | First direct images of exoplanets, confirmed supermassive black hole at Milky Way center (with VLT) |
LIGO | Gravitational Wave | Washington & Louisiana, USA | 2002 (advanced: 2015) | First detection of gravitational waves (2015), Nobel Prize 2017, neutron star merger with optical confirmation |
Spitzer Space Telescope | Infrared Space | Earth-trailing orbit | 2003 (retired 2020) | TRAPPIST-1 system (7 Earth-sized planets), galaxy structure mapping, star formation regions |
Kepler Space Telescope | Optical Space (transit) | Earth-trailing orbit | 2009 (retired 2018) | 2,700+ confirmed exoplanets, proved planets are common (billions in Milky Way), changed astronomy forever |
Extremely Large Telescope (ELT) | Optical Ground | Atacama Desert, Chile | Under construction (2028) | Will be world's largest optical telescope (39m mirror), might directly image Earth-like exoplanets |
Euclid | Optical/NIR Space | L2 Point | 2023 | Mapping dark matter distribution across universe, billions of galaxies in 3D, dark energy evolution |
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