Dec 14, 2012 · Neptune's atmosphere is made up predominately of hydrogen and helium, with some methane. The methane is part of what gives Neptune its brilliant blue tint, as it absorbs …

Nov 6, 2024 · Neptune is one of two ice giants in the outer solar system (the other is Uranus). Most (80% or more) of the planet's mass is made up of a hot dense fluid of "icy" materials – …

May 20, 2024 · Here we present a JWST-NIRSpec transmission spectrum of WASP-107b that shows features from both SO 2 and CH 4 along with H 2 O, CO 2, and CO. We detect …

Nov 5, 2024 · Winds on Neptune churn up methane gas from the deep, and they glom onto aerosol particles in the atmosphere, causing haze to rain out as snow. The traces of methane …

Apr 15, 2024 · Neptune, for example, has an atmosphere made of hydrogen and helium (with just a tinge of methane), and it doesn’t really have a surface—or, at least, not what we think of as a …

Sep 8, 2020 · Neptune’s atmosphere is mainly comprised of three gases: hydrogen (80%), helium (19%), and methane (1%). It’s these clouds of methane gas that explain Neptune’s blue …

Mar 5, 2025 · Abstract page for arXiv paper 2503.03895: HST Transmission Spectra of the Hot-Neptune HD 219666 b: Detection of Water and the Challenge of Constraining Both Water and …

Apr 24, 2017 · Neptune's blue color derives from methane and another as-yet-unidentified component in its atmosphere. Most of the atmosphere is hydrogen, helium and ammonia, with …

May 17, 2023 · The uppermost layer of Neptune's atmosphere is composed mainly of methane ice clouds along with ammonia hydrosulfide (NH4SH), ammonia (NH3), and water vapor clouds. …

Sep 3, 2024 · In this paper, we investigate the impact of this methane vertical gradient on the atmospheric regimes, especially on the formation and inhibition of moist convective storms in …