Tag

Hazes

All articles tagged with #hazes

science1 month 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

astronomy2 years ago•33 min saved

JWST discovers intense equatorial jet in Jupiter's lower stratosphere

The James Webb Space Telescope (JWST) has observed an intense and narrow equatorial jet in Jupiter's lower stratosphere. The observations reveal a distinct central jet at the equator, similar to Saturn's equatorial jet, but with a stronger vertical wind shear. The jet increases in altitude up to the tropopause and is located in a region of elevated hazes above the main cloud deck. The findings highlight the similarities and differences in the equatorial dynamics of Jupiter and Saturn and provide new insights into the atmospheric dynamics of gas giants.

via Nature.com|

#astronomy #atmospheric-dynamics #equatorial-jet