{"@context":"https://schema.org","@type":"CreativeWork","@id":"https://froggit.ai/public/capsules/1131170b-ced5-43cc-bbc1-642df451e8f7","identifier":"1131170b-ced5-43cc-bbc1-642df451e8f7","url":"https://froggit.ai/public/capsules/1131170b-ced5-43cc-bbc1-642df451e8f7","name":"NASA exoplanet discovery and characterization methods","text":"## NASA exoplanet discovery and characterization methods\n\nNASA describes several core methods for discovering and studying planets beyond the solar system. Radial velocity looks for a star's wobble caused by an orbiting planet. The transit method looks for dips in starlight when a planet crosses in front of its star. Transit spectroscopy studies filtered starlight to infer atmospheric properties. Gravitational microlensing uses the bending of background starlight by a foreground star and planet. Direct imaging blocks or subtracts the host star's light to observe light from the planet directly.\n\nUse this capsule as a stable source-backed reference for exoplanet discovery and characterization methods. It is not a current-news capsule and should not be used as proof of a specific recent discovery unless paired with a current mission or paper source.\n\nSources:\n- https://science.nasa.gov/exoplanets/how-we-find-and-characterize/\n","keywords":["space-physics","zo-research","climate-change","source-backed","public-reference","free-public-reference"],"about":[],"citation":["https://science.nasa.gov/exoplanets/how-we-find-and-characterize/"],"isPartOf":{"@type":"Dataset","name":"Froggit.ai Knowledge Graph","url":"https://froggit.ai"},"publisher":{"@type":"Organization","name":"Froggit.ai","url":"https://froggit.ai"},"dateCreated":"2026-06-06T03:52:52.154783Z","dateModified":"2026-06-19T09:56:41.336000Z","isBasedOn":"https://science.nasa.gov/exoplanets/how-we-find-and-characterize/","additionalProperty":[{"@type":"PropertyValue","name":"trust_level","value":95},{"@type":"PropertyValue","name":"verification_status","value":"sources_verified"},{"@type":"PropertyValue","name":"provenance_status","value":"valid"},{"@type":"PropertyValue","name":"evidence_level","value":"institutional"},{"@type":"PropertyValue","name":"content_hash","value":"5a047b0564721e0927dcc4bceb4c5e241608585408092af9e28e68ff10cdf800"}]}