Discover and read the best of Twitter Threads about #NIRCam

Most recents (7)

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 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
1/ 📢 This is an image mosaic of 18 randomly organised dots of starlight, the product of #Webb 's unaligned mirror segments all reflecting light from the same star back at Webb's secondary mirror and into #NIRCam's detectors. Thread 👇 with a surprise at the end!
2/ The mosaic was created by pointing the telescope at a bright, isolated star in the constellation Ursa Major known as HD 84406, chosen specifically because it's easily identifiable and not crowded by other stars of similar brightness, which helps to reduce background confusion
3/ Each dot within the mosaic is labeled by the corresponding primary mirror segment that captured it. These initial results closely match expectations and simulations.
Read 12 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
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

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