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Super Venus

All articles tagged with #super venus

science1 month ago•17 min saved

Enaiposha defies planetary labels with a hazy, Venus-like atmosphere

Using JWST data, Enaiposha (GJ 1214 b)—a planet about 47 light-years away—emerges as a hazy, Venus-like world that defies its sub-Neptune classification. Its thick, cloud-laden atmosphere may host molecules like water vapor, carbon dioxide and metals, suggesting a metal-rich, hot atmosphere unlike anything in our solar system; the hazes make atmospheric analysis difficult but provide a new lens on thick-atmosphere evolution. Although not habitable, Enaiposha could help scientists reinterpret planetary types and refine models for other exoplanets.

via Earth.com|

#atmosphere #enaiposha #exoplanet

science3 months ago•16 min saved

Enaiposha: a Venus-like exoplanet that challenges planetary categories

Astronomers using JWST data on Enaiposha (GJ 1214 b), a star‑hopping exoplanet about 47 light-years away, find a thick, hazy atmosphere that makes it more Venus‑like than the previously assumed mini‑Neptune. Early spectral hints point to carbon dioxide, water vapor, and metals, signaling a possible new sub‑type of exoplanet and highlighting how hazes can obscure atmospheric chemistry—though Enaiposha itself is likely too hot to be habitable.

via Earth.com|

#enaiposha #exoplanet #gj-1214-b

space3 months ago•7 min saved

Webb Unmasks a New Class: The GJ 1214 b ‘Super Venus’

NASA’s JWST pierced the long-standing haze of exoplanet GJ 1214 b (about 47 light-years away) to detect carbon dioxide and methane in its thick atmosphere, suggesting a high-metallicity, greenhouse-like environment. This challenges the absence of such sub-Neptunes in our solar system and has led to a proposed new class, the “super Venus.” Further observations are needed to confirm the atmospheric structure and chemistry, but the finding marks a milestone in characterizing hazy exoplanets.

via Indian Defence Review|

#exoplanet #gj-1214-b #jwst