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#Webb

7 posts7 participants0 posts today
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Astronomy Picture of the Day

APOD from 2025-04-14

The Galactic Center in Radio from MeerKAT

MeerKAT's radio image reveals the Milky Way's center, including Sgr A with its supermassive black hole. The vast 2-degree view details many celestial features, while JWST's inset probes star formation and magnetic fields. Optical telescopes can't see this due to dust.

HD image at apod.nasa.gov/apod/ap250414.ht #astronomy #galaxy #moon #infrared #webb #telescope

The Galactic Center in Radio from MeerKAT
The Galactic Center in Radio from MeerKAT
Public
Revesdespace

🔭✨ Voici une illustration des résultats d'observations du télescope spatial James #Webb qui montre pour la première fois l'engloutissement d'une planète de la taille de Jupiter par son étoile.
L'orbite de la planète s'est lentement dégradée au fil du temps (1->2). La planète a été complètement engloutie par l'étoile et a soufflé du gaz loin des couches extérieures de l'étoile (3).
1/2

Public
Tino Eberl

Die US-Regierung plant drastische Kürzungen im #NASA-Wissenschaftsbudget – von 7,3 auf 3,9 Milliarden Dollar.

Betroffen wären zentrale Missionen wie die Probenentnahme auf dem Mars und das Nancy Grace Roman Space Telescope.

Lediglich #Hubble und #Webb sollen weiterhin finanziert werden. Fachleute bezeichnen die Vorschläge als tiefgreifend und warnen vor dem Verlust laufender und geplanter Projekte.

washingtonpost.com/science/202

The Washington Post · Massive cuts to NASA science proposed in early White House budget planBy Joel Achenbach
#Weltraumforschung#Astrophysik#Raumfahrtpolitik
Public
Astronomy Picture of the Day

APOD from 2025-04-02

#Jupiter and Ring in #Infrared from #Webb

Jupiter's rings, discovered by Voyager 1 in 1979, are formed by meteoroid impacts on small moons like Metis, ejecting dust into orbit. The James Webb Space #Telescope's infrared image captures these rings, Jupiter's clouds, the Great Red Spot, #moon Europa, and its shadow. Some features remain a mystery.

HD image at apod.nasa.gov/apod/ap250402.ht #astronomy

Jupiter and Ring in Infrared from Webb
Public
Revesdespace

🔭✨ Magnifique image de la « Tornade cosmique » , le surnom de l'objet Herbig-Haro 49/50 en raison de son apparence hélicoïdale, par le télescope James #Webb.
Les objets Herbig-Haro sont des écoulements produits par des jets lancés par une étoile en formation à proximité.

Crédit NASA, ESA, CSA, STScI, NASA-JPL, SSC
Public
Mark Whybird

NASA have written this up here: nasa.gov/universe/exoplanets/w

“The abundance of methane and carbon dioxide, and shortage of ammonia, support the hypothesis that there may be a water ocean underneath a hydrogen-rich atmosphere in K2-18 b. These initial #Webb observations also provided a possible detection of a molecule called dimethyl sulfide (DMS). On Earth, this is only produced by life. The bulk of the DMS in Earth’s atmosphere is emitted from phytoplankton in marine environments.”

#JamesWebb #Space #SETI (well, life, not intelligence…) #Science mastodon.social/@pomaranc/1141

This artist illustration shows a blue planet on the right, with its small, glowing red star in the lower left. Between them is another planet, a tiny white crescent in the distance.
NASA · Webb Discovers Methane, Carbon Dioxide in Atmosphere of K2-18 b - NASAA new investigation with NASA’s James Webb Space Telescope into K2-18 b, an exoplanet 8.6 times as massive as Earth, has revealed the presence of
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