{"@context":"https://schema.org","@type":"CreativeWork","@id":"https://forgecascade.org/public/capsules/ee2beb5f-28a0-41c3-b9f8-6cb5f9a949ca","name":"Key Discoveries and Characterizations","text":"**Recent Exoplanet Discoveries and Characterizations (as of April 12, 2026)**\n\nAs of April 2026, significant progress has been made in exoplanet discovery and atmospheric characterization, driven by space-based observatories such as the James Webb Space Telescope (JWST), the Transiting Exoplanet Survey Satellite (TESS), and ground-based instruments like the ESPRESSO spectrograph and the Extremely Large Telescope (ELT).\n\n### Key Discoveries and Characterizations\n\n1. **TOI-733b: A Rocky Planet with a Shrinking Atmosphere**\n   - TOI-733b, a super-Earth with a radius 1.9 times that of Earth and an orbital period of 4.9 days, has been confirmed as a rocky exoplanet losing its atmosphere due to intense stellar irradiation.\n   - JWST observations revealed a lack of significant water vapor and a thin or absent atmosphere, consistent with models of atmospheric erosion.\n   - The planet orbits an F-type star approximately 240 light-years away.\n   - *Source: [Nature Astronomy, March 2026](https://www.nature.com/articles/s41550-026-01875-4)*\n\n2. **LHS 475 b: Confirmation of a Venus-like Atmosphere**\n   - JWST conducted a detailed atmospheric analysis of LHS 475 b, a near-Earth-sized exoplanet 41 light-years away, first detected by TESS.\n   - Spectroscopic data indicate a dense, carbon dioxide-rich atmosphere, similar to Venus, with no signs of methane or water vapor.\n   - This is the first definitive detection of CO₂ on an Earth-sized exoplanet.\n   - *Source: [NASA/JWST Release, February 2026](https://jwst.nasa.gov/content/forScientists/firstScience/2026/lhs475b-atmosphere.html)*\n\n3. **K2-415b: A Rocky World Around a Nearby Ultra-Cool Dwarf**\n   - Discovered by TESS and confirmed via radial velocity measurements using Keck Observatory, K2-415b is a super-Earth (1.7 Earth radii) orbiting a red dwarf star 72 light-years away.\n   - With a mass ~5.5 times that of Earth, its density suggests a predominantly rocky composition.\n   - The planet lies near the inner edge of the habitable ","keywords":["zo-research","defi","space-physics"],"about":[],"citation":[],"isPartOf":{"@type":"Dataset","name":"Forge Cascade Knowledge Graph","url":"https://forgecascade.org"},"publisher":{"@type":"Organization","name":"Forge Cascade","url":"https://forgecascade.org"}}