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Large Telescope Projects and Their Goals
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Hubble Space Telescope (HST)
Location: Low Earth Orbit, Timeframe: Launched in 1990, Scientific Goals: Observing distant galaxies, black holes, nebulae, and interstellar objects.
James Webb Space Telescope (JWST)
Location: Near the Second Lagrange Point (L2), Timeframe: Launched in 2021, Scientific Goals: Study galaxy formation, star birth, planetary systems, and the early universe.
Large Synoptic Survey Telescope (LSST) - now named Vera C. Rubin Observatory
Location: Cerro Pachón, Chile, Timeframe: Expected to start operations in mid-2020s, Scientific Goals: Cataloging billions of objects, understanding dark matter and dark energy, mapping the Milky Way.
Thirty Meter Telescope (TMT)
Location: Maunakea, Hawaii (proposed), Timeframe: Planned for 2020s, Scientific Goals: Study the universe at near, mid, and far-infrared wavelengths, direct observations of exoplanets.
Event Horizon Telescope (EHT)
Location: Global array of radio telescopes, Timeframe: First image obtained in 2019, Scientific Goals: Imaging and studying the immediate environment of supermassive black holes, notably the black hole at the center of M87.
Extremely Large Telescope (ELT)
Location: Cerro Armazones, Chile, Timeframe: Expected to be operational by 2025, Scientific Goals: Directly image exoplanets, study the nature of dark energy, and observe the universe's earliest stages.
Giant Magellan Telescope (GMT)
Location: Las Campanas Observatory, Chile, Timeframe: Expected first light in the late 2020s, Scientific Goals: Exploring exoplanet atmospheres, observing the first stars of the universe, and the nature of dark matter.
Chandra X-ray Observatory
Location: High Earth Orbit, Timeframe: Launched in 1999, Scientific Goals: Observing high-energy regions of the universe, such as the remnants of exploded stars, clusters of galaxies, and matter around black holes.
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