Discover and read the best of Twitter Threads about #MIRI

Most recents (11)

This detailed new image taken by #Webb peers into the chaos of the Cartwheel Galaxy 🛞 The image unveils secrets about star formation ✨ & the galaxy’s central black hole, providing new insights into a galaxy in the midst of a slow transformation 👇
The Cartwheel Galaxy, located about 500 million light-years away in the Sculptor constellation, looks much like the wheel of a wagon. Its appearance results from a high-speed collision between a large spiral galaxy and a second smaller galaxy 👇
Telescopes like @HUBBLE_space have previously examined the Cartwheel, but our view of the galaxy has been obscured by gas and dust 😶‍🌫️ Webb, with its infrared imaging capabilities, has now uncovered new insights into the galaxy’s nature 👇
Read 6 tweets
📢 #Webb reveals cosmic cliffs & glittering landscape of star birth, showing us emerging stellar nurseries & individual stars that were previously obscured. This is the edge of nearby star-forming region NGC 3324 in the Carina Nebula. Read more here: or👇 Image
Called the Cosmic Cliffs, Webb’s seemingly 3D picture looks like craggy mountains on a moonlit evening. In reality, it is the edge of the giant, gaseous cavity within NGC 3324, and the tallest “peaks” in this image are about 58 light-years high 👇 Image
The cavernous area has been carved from the nebula by the intense ultraviolet radiation and stellar winds from extremely massive, hot, young stars located in the centre of the bubble, above the area shown in the image 👇
Read 7 tweets
📢 #Webb reveals never-before-seen details of galaxy group “Stephan’s Quintet”, giving astronomers a ringside seat to galactic mergers and interactions. Read more here: or below 👇
Stephan’s Quintet is a visual grouping of 5 galaxies with only 4 of the galaxies truly close together & caught up in a cosmic dance — a fantastic “laboratory” for scientists to see in detail how interacting galaxies trigger star formation & how gas is being disturbed 👇
Tight groups like this may have been more common in the early universe when their infalling material may have fuelled very energetic black holes. Even today, the topmost galaxy harbours an active galactic nucleus, a supermassive black hole 24 million times the mass of the Sun 👇
Read 7 tweets
📢#Webb reveals details of the Southern Ring planetary nebula that were previously hidden, helping us better understand how stars evolve and transform their environments. Read more here: or below 👇#WebbSeesFarther
Some stars save the best for last 💥 Planetary nebulae are the shells of gas and dust ejected from dying stars — making for a spectacular view. Since they exist for tens of thousands of years, observing such a nebula is like watching a movie in exceptionally slow motion 👇
Two stars, which are locked together in a tight orbit, shape the local landscape of this planetary nebula. Webb's infrared images feature new details in this complex system 👇
Read 7 tweets
📢 #Webb delivers deepest image of the Universe yet, looking far back in time when the Universe was less than a billion years old. The image is about the size of a grain of sand held at arm’s length, yet it reveals thousands of galaxies. Read more or 👇
This is Webb’s First Deep Field, the deepest, sharpest infrared image of the distant Universe so far. It shows galaxy cluster SMACS 0723 as it appeared 4.6 billion years ago, with many more galaxies in front of and behind the cluster 👇
The combined mass of this galaxy cluster acts as a gravitational lens 🔎 magnifying more distant galaxies, including some seen when the Universe was less than a billion years old 👇
Read 8 tweets
Le télescope spatial @ESA_Webb est arrivé à bon port aujourd'hui, et s'est mis en orbite autour du point L2. Beaucoup pensent qu'il est déjà opérationnel pour dévoiler les mystères de l'univers #unfoldtheuniverse mais non ... pas encore. Il ne commencera que dans 5 mois ⏳(1/8) Image
Pendant les 3 prochains mois @ESA_Webb va s'atteler à une tâche délicate et hautement importante : l'alignement de ses 18 miroirs segmentés afin qu'ils ne forment plus qu'un seul et grand miroir. Cool @NASAWebb a même prévu un GIF pour expliquer ça (2/8)
Pendant ce temps là, l'instrument #MIRI, développé en partie @CEAIrfu @IASorsay @LesiaAstro @LAM_Marseille @CNES, continue de refroidir jusqu'à atteindre une température de 7 Kelvin (-266ºC 🥶). Cet instrument sera le seul sur #JWST à observer dans l'infrarouge thermique (3/8) Image
Read 8 tweets
1/ The Mid-InfraRed Instrument #MIRI is one of 4 instruments on the James #Webb Space Telescope. The only mid-infrared instrument in its instrument suite. #WebbSeesFarther
📷 NASA/ Chris Gunn
2/ Thanks to state-of-the-art instrument design and components, it will deliver mid-infrared images and spectra with an unprecedented combination of sharpness and sensitivity. #WebbSeesFarther
3/ #MIRI will be capable of penetrating thick layers of dust obscuring regions of intense star birth. It will see the first generations of galaxies to form after the #BigBang, and it will study sites of new planet formation and the composition of the interstellar medium.
Read 4 tweets
Tutto pronto per seguire il lancio del telescopio spaziale #Webb alle 13:20 ora italiana #Jwst

Ma... perché si tratta di un momento storico per l'astronomia? Scopriamolo in questo ⬇️🧵 con le infografiche a cura di @esa @ESA_Italia

Media kit ➡️…

Gli obiettivi scientifici di #Jwst:
✨ le prime #galassie nella storia dell'universo
🌟 la formazione di #stelle e #pianeti
💫 le atmosfere degli #esopianeti
🪐 i pianeti del Sistema solare

#Webb #WebbFliesAriane #UnfoldTheUniverse

🚀 Il lancio di #Jwst – atteso tra poche ore – è solo l'inizio...

Ecco i momenti principali, dalla separazione delle varie componenti fino all'acquisizione del primo segnale 📡⬇️

Read 11 tweets
Je me suis amusé à faire la version francophone du calendrier de l'avent #JWST
Déroulez le fil, je suis curieux de savoir si vous apprenez quelque chose 🧵👇
🎄4 Déc🎄
a eu une brillante idée, ce #thread s'appelle maintenant #JingleWebb 🔔😆

Chaque jour on gratte un hexagone pour découvrir ce qui se cache derrière !

On commence avec un détail sur un miroir de @NASAWebb
📸:Drew Noel
🎄5 Déc🎄

La beauté de ces hexagones dorés 😍

📸NASA/MSFC/David Higginbotham/Emmett Given
Read 21 tweets
Our new homepage is now online -- check it out at and don't miss our "METIS app" that lets you see how METIS will operate! @ASTRON_NL @ukatc @mpi_astro @univienna @CEAParisSaclay @ETH_physics @IvS_KULeuven @UniCologne
@ASTRON_NL @ukatc @mpi_astro @univienna @CEAParisSaclay @ETH_physics @IvS_KULeuven @UniCologne Our explainer app starts off with a screen showing the optical layout of METIS and its various subsystems. Image
METIS offers five main observing modes (direct imaging, high contrast imaging, long-slit spectroscopy, IFU spectroscopy and IFU spectroscopy combined with high contrast imaging). In each mode, various sub-modes are available.
Read 22 tweets

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