How Many Planets Might Be Out There?
In short: Astronomers have confirmed more than 6,000 planets by reading tiny changes in starlight, and statistics suggest planets are common, but totals beyond the systems actually observed remain estimates.
A 1:56 short film in the series “Journey of Light”, narrated by intellect_voice_01.
Sources used in this film: NASA Science (National Aeronautics and Space Administration), “How We Find and Characterize - NASA Science”; European Space Agency (ESA), Science & Technology portal (sci.esa.int), “Exoplanet detection methods - Exoplanets - Science Portal”; NASA (paper by Roger C. Hunter, NASA Ames Research Center, presented at the 4S Symposium 2018), “Microsoft Word - 4SKepler.docx”; NASA Ames Research Center / SETI Institute (NASA Technical Reports Server), “20110010911.pdf”; NASA (Jet Propulsion Laboratory), “NASA’s Tally of Planets Outside Our Solar System Reaches 6,000 - NASA”; NASA Exoplanet Archive (operated by Caltech/IPAC), “Exoplanet and Candidate Statitics”; NASA Science (NASA's Exoplanet Exploration Program), “Exoplanet in the corner pocket: a recount for thousands of worlds - NASA Science”; NASA Science (NASA Hubble Mission Team, Goddard Space Flight Center), “The Milky Way Contains at Least 100 Billion Planets According to Survey - NASA Science”; NASA Hubble mission release page, hosting the research letter by A. Cassan et al. (PLANET, OGLE and MOA collaborations), “Letter_Cassan-etal.pages”; NASA Goddard Space Flight Center, Astrophysics Science Division (NASA Blueshift blog, by Maggie Masetti, July 22, 2015), “How Many Stars in the Milky Way?”; European Space Agency (ESA), “How many stars are there in the Universe?”; NASA (NASA Science, Hubble Space Telescope mission team, Goddard Space Flight Center), “What Does the Milky Way Weigh? Hubble and Gaia Investigate - NASA Science”; Smithsonian Institution (Center for Astrophysics | Harvard & Smithsonian, Chandra X-ray Center), “Chandra Sees Evidence of Possible Planet in Another Galaxy”; NASA Science (National Aeronautics and Space Administration), “First Evidence of a Planet Identified Beyond Our Galaxy - NASA Science”.
Sources used in this film
- NASA Science (National Aeronautics and Space Administration) — How We Find and Characterize - NASA Science · View →
- European Space Agency (ESA), Science & Technology portal (sci.esa.int) — Exoplanet detection methods - Exoplanets - Science Portal · View →
- NASA (paper by Roger C. Hunter, NASA Ames Research Center, presented at the 4S Symposium 2018) — Microsoft Word - 4SKepler.docx · View →
- NASA Ames Research Center / SETI Institute (NASA Technical Reports Server) — 20110010911.pdf · View →
- NASA (Jet Propulsion Laboratory) — NASA’s Tally of Planets Outside Our Solar System Reaches 6,000 - NASA · View →
- NASA Exoplanet Archive (operated by Caltech/IPAC) — Exoplanet and Candidate Statitics · View →
- NASA Science (NASA's Exoplanet Exploration Program) — Exoplanet in the corner pocket: a recount for thousands of worlds - NASA Science · View →
- NASA Science (NASA Hubble Mission Team, Goddard Space Flight Center) — The Milky Way Contains at Least 100 Billion Planets According to Survey - NASA Science · View →
- NASA Hubble mission release page, hosting the research letter by A. Cassan et al. (PLANET, OGLE and MOA collaborations) — Letter_Cassan-etal.pages · View →
- NASA Goddard Space Flight Center, Astrophysics Science Division (NASA Blueshift blog, by Maggie Masetti, July 22, 2015) — How Many Stars in the Milky Way? · View →
- European Space Agency (ESA) — How many stars are there in the Universe? · View →
- NASA (NASA Science, Hubble Space Telescope mission team, Goddard Space Flight Center) — What Does the Milky Way Weigh? Hubble and Gaia Investigate - NASA Science · View →
- Smithsonian Institution (Center for Astrophysics | Harvard & Smithsonian, Chandra X-ray Center) — Chandra Sees Evidence of Possible Planet in Another Galaxy · View →
- NASA Science (National Aeronautics and Space Administration) — First Evidence of a Planet Identified Beyond Our Galaxy - NASA Science · View →
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Sources
- Summary by Intellect · source: How We Find and Characterize - NASA Science
- Also: European Space Agency (ESA), Science & Technology portal (sci.esa.int): Exoplanet detection methods - Exoplanets - Science Portal
- Also: NASA (paper by Roger C. Hunter, NASA Ames Research Center, presented at the 4S Symposium 2018): Microsoft Word - 4SKepler.docx
- Also: NASA Ames Research Center / SETI Institute (NASA Technical Reports Server): 20110010911.pdf
- Also: NASA (Jet Propulsion Laboratory): NASA’s Tally of Planets Outside Our Solar System Reaches 6,000 - NASA
- Also: NASA Exoplanet Archive (operated by Caltech/IPAC): Exoplanet and Candidate Statitics
- Also: NASA Science (NASA's Exoplanet Exploration Program): Exoplanet in the corner pocket: a recount for thousands of worlds - NASA Science
- Also: NASA Science (NASA Hubble Mission Team, Goddard Space Flight Center): The Milky Way Contains at Least 100 Billion Planets According to Survey - NASA Science
- Also: NASA Hubble mission release page, hosting the research letter by A. Cassan et al. (PLANET, OGLE and MOA collaborations): Letter_Cassan-etal.pages
- Also: NASA Goddard Space Flight Center, Astrophysics Science Division (NASA Blueshift blog, by Maggie Masetti, July 22, 2015): How Many Stars in the Milky Way?
- Also: How many stars are there in the Universe?
- Also: NASA (NASA Science, Hubble Space Telescope mission team, Goddard Space Flight Center): What Does the Milky Way Weigh? Hubble and Gaia Investigate - NASA Science
- Also: Smithsonian Institution (Center for Astrophysics | Harvard & Smithsonian, Chandra X-ray Center): Chandra Sees Evidence of Possible Planet in Another Galaxy
- Also: First Evidence of a Planet Identified Beyond Our Galaxy - NASA Science
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