iiinova — where your digital self keeps evolving

Melina Thévenot🏳️‍⚧️ @melina-iras07572.bsky.social · 43m

Part of the NGC 7129 #JWST MIRI mosaic (filter F770W) Two hours of work of manually creating tiles and stiching into a mosaic (72 idividual images). program: www.stsci.edu/jwst-program...

A bright nebula on the left. A nebula with a rim on the bottom.

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Melina Thévenot🏳️‍⚧️ @melina-iras07572.bsky.social · 08/10/2026

Targeting a cold brown dwarf with estm. spectral type of Y1 or later. Table 9 of Meisner et al. lists Teff 233 to 398 K (-40 to 125°C; -40 to 257°F). iopscience.iop.org/article/10.3... The image of the bot does not show the brown dwarf. Here is a screenshot of the IFU (image+spectrum) thumbnails.

MIRI IFU thumbnails, showing three of the channels that have the brown dwarf as a point source. It is possible to view the spectrum of each channel, but it makes more sense to combine them into one spectrum, which the researchers will do.

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Melina Thévenot🏳️‍⚧️ @melina-iras07572.bsky.social · 06/10/2026

Neat, one of my images was used in an Alpha Phoenix video. www.youtube.com/watch?v=FR6z...

Video showing a moth on the left side and a debris disk on the right side. Below is the channel name AlphaPhoenix.

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Melina Thévenot🏳️‍⚧️ @melina-iras07572.bsky.social · 06/10/2026

Object on the left not in SIMBAD. Likely a star-forming region. Shaped like a yellow heart. 💛 #JWST MIRI (F560W, F770W, F1000W). program: www.stsci.edu/jwst-program...

A yellow heart-shaped nebula on the left. Background nebula is red to yellow. Some dark clouds on the upper right.

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Reposted by Melina Thévenot🏳️‍⚧️

ESA Space Science @science.esa.int · 05/10/2026

Can planets emerge from the deaths of stars? 💀 Astronomers looking through Hubble data from 1999 have identified unusual amounts of niobium in the chemical signatures from a white dwarf. 🔭 🧪

Artist's impression of a gaseous planet in the right foreground, seen mostly in silhouette, orbits a small, white star in the background at left. The star is surrounded by a thin, bright white disk tilted from lower left to upper right. A semi-transparent tail of material comes off the planet toward the upper right. Distant stars dot the black background of space. Credit: NASA, ESA, L. Hustak (STScI)

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Melina Thévenot🏳️‍⚧️ @melina-iras07572.bsky.social · 05/10/2026

Nucleus of the #galaxy NGC 1326 with #JWST NIRCam (F150W, F200W, F335M). program: www.stsci.edu/jwst-program...

A ring around the nucleus with dark dust clouds and stars.

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Melina Thévenot🏳️‍⚧️ @melina-iras07572.bsky.social · 05/10/2026

Part of NGC 602, located in the nearby galaxy "Small Magellanic Cloud". 🔭 #JWST NIRCam (F140M, F162M, F182M, F277W)

A star cluster surrounded by red-brown nebulae. A spiral galaxy on the lower left.

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Reposted by Melina Thévenot🏳️‍⚧️

Israel Velazquez @israelvelazquez.bsky.social · 05/10/2026

NGC-602 | NIRCam #JWST Proposal ID: 7035 (www.stsci.edu/jwst-program...) Proposal ID: 2662 (www.stsci.edu/jwst-program...) PI: Zeidler, Peter (ESA Member) Filters: F115W F140M² F150W F162M F182M F210M F277W² F335M F356W F360M F444W F480M F770W F1000W F1130W F1500W F2550.

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Melina Thévenot🏳️‍⚧️ @melina-iras07572.bsky.social · 03/10/2026

Gravitational lens WISE J220544.23-372701.4 with #JWST NIRCam (F200W, F356W). program: www.stsci.edu/jwst-program... The galaxy in the center lenses a quasar (quasi stellar object), which is the bright black hole in the center of a galaxy. This creates the four identical point sources.

A blue galaxy in the center with four red point sources. Three on one side and one on the other.

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Melina Thévenot🏳️‍⚧️ @melina-iras07572.bsky.social · 03/10/2026

Interacting #galaxy pair NGC 7253 with #Hubble WFC3/IR (F150W, F125W, F160W) program: archive.stsci.edu/proposal_sea...

Two galaxies with distorted spiral arms from the interaction.

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Melina Thévenot🏳️‍⚧️ @melina-iras07572.bsky.social · 03/10/2026

The #galaxy ESO 480-011 with #Hubble WFC3/IR (F105W, F125W, F160W) program: archive.stsci.edu/proposal_sea...

A edge-on galaxy with a dust lane and a boxy and x-shaped bulge in the center.

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Melina Thévenot🏳️‍⚧️ @melina-iras07572.bsky.social · 02/10/2026

Remnant of the #supernova SN 1987A with #JWST NIRCam (F150W, F200W) program: www.stsci.edu/jwst-program... 🔭

The oval shaped remnant with a white color and orange dottet ring inside. Inside it a blue nebula.

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Melina Thévenot🏳️‍⚧️ @melina-iras07572.bsky.social · 02/10/2026

Necromantic Thirst (Doom 2 required) is a lot of fun so far. Map 15 was the first map I played with a high enemy count. www.doomworld.com/forum/topic/...

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Melina Thévenot🏳️‍⚧️ @melina-iras07572.bsky.social · 02/10/2026

Star cluster KMK88 87 in the Large Magellanic Cloud. Bright star on the right is [MG 73] 46. #JWST NIRCam (F115W, F150W, F200W). Parallel observation. program: www.stsci.edu/jwst-program...

Blue stars in an elongated star cluster. A bright yellow star on the right.

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Melina Thévenot🏳️‍⚧️ @melina-iras07572.bsky.social · 02/10/2026

SN 1987A with #JWST MIRI (F560W, F770W) program: www.stsci.edu/jwst-program...

A bright white ring surrounded by brown dust clouds.

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Reposted by Melina Thévenot🏳️‍⚧️

Deutsches Zentrum für Luft- und Raumfahrt (DLR) @dlr-de.bsky.social · 01/10/2026

🚀 Eine Rakete, 4 Nachwuchsteams und 7 Minuten Schwerelosigkeit für Experimente! Die Höhenforschungsrakete #MAPHEUS®-17 ist heute erfolgreich in Schweden gestartet. Mit an Bord: eigene Experimente junger Talente, u.a. von @jugendhackt.bsky.social & DLR_School_Labs. ℹ️: s.dlr.de/MAPHEUS-17-L... (1/2)

Start der DLR-Höhenforschungsrakete MAPHEUS®-17

Am 1. Oktober 2026 startete die DLR-Rakete vom schwedischen Esrange Space Center aus. Sie brachte eine Vielzahl an Experimenten für fast sieben Minuten in nahezu schwerelose Bedingungen.

Um die Rakete in eine Höhe von fast 300 Kilometern zu bringen, kamen für den Antrieb zwei Raketenmotoren zum Einsatz: eine RED KITE als untere Stufe und eine Improved Malemute als obere Stufe.

Credit: DLR (CC BY-NC-ND 3.0)

Nutzlast von MAPHEUS®-17 beim Zusammenbau

In den Tagen vor dem Raketenstart integrieren die Forschenden die Experimente in die Module. Diese werden dann miteinander verbunden. So wächst Schritt für Schritt die Nutzlast zusammen, die an der Spitze der Rakete sitzt.

Credit: DLR (CC BY-NC-ND 3.0)

Nutzlast von MAPHEUS®-17 wartete auf ihren Einsatz

Sobald die Nutzlast fertig montiert ist, finden letzte Tests statt. Dann wird sie in einen Container verpackt, zum Startturm gebracht und dort mit den Raketenmotoren verbunden.

Credit: DLR (CC BY-NC-ND 3.0)

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Melina Thévenot🏳️‍⚧️ @melina-iras07572.bsky.social · 01/10/2026

Sounding rocket MAPHEUS 17 (German space agency DLR) launch from Sweden this morning. During an inversion. Archived Livestream link: www.youtube.com/watch?v=MuTa...

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Melina Thévenot🏳️‍⚧️ @melina-iras07572.bsky.social · 01/10/2026

Remnant of SN 1987A, a #supernova that exploded in the nearby Large Magellanic Cloud. September 2022 image with #JWST NIRCam (F150W, F200W, F212N, F405N). program: www.stsci.edu/jwst-program...

A orange nebula with a yellow inner dotted ring. Inside this ring is a blue-violet nebula.

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Melina Thévenot🏳️‍⚧️ @melina-iras07572.bsky.social · 01/10/2026

I just realized that I could preserve the short wavelength resolution of the F115W filter while adding the color of the (low-resolution) F277W filter. Here again NVSS J193825+664853 gravitational lens (target name B1938+666). #JWST NIRCam (F115W, F277W) www.stsci.edu/jwst-program...

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Melina Thévenot🏳️‍⚧️ @melina-iras07572.bsky.social · 01/10/2026

NVSS J193825+664853 gravitational lens (target name B1938+666). #JWST NIRCam (F115W, F277W) program: www.stsci.edu/jwst-program...

An orange galaxy in the middle with a ring inside it.

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Reposted by Melina Thévenot🏳️‍⚧️

Chara @astrochara.bsky.social · 30/09/2026

As a cold sub-Neptune planet, TOI-6981 b probably has a hydrogen-rich atmosphere which might make its atmosphere resemble our giant planets', so I based its appearance on Jupiter, Saturn, and Neptune. bsky.app/profile/astr...

This artwork depicts a possible appearance for TOI-6981 b, which is depicted as a brown/cream-coloured odd combination of Jupiter, Saturn, and Neptune, further tinted orangish by the light of its M4V host star. Behind it is the constellation of Orion as seen from TOI-6981, its stars displaced from how they look from Earth.

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Reposted by Melina Thévenot🏳️‍⚧️

ESA Space Science @science.esa.int · 30/09/2026

Inspector Smile is ready for science! 🫡 This is Smile’s first ultraviolet view showing an auroral substorm. With the ultraviolet camera now operational, Smile becomes the first spacecraft since 2008 to capture the full ring of northern lights around the north pole in ultraviolet light. 🔭 🧪 ☀️

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Reposted by Melina Thévenot🏳️‍⚧️

Israel Velazquez @israelvelazquez.bsky.social · 30/09/2026

NGC-6302 | #Hubble (wide view) Instrument: WFC3/UVIS Proposal ID: 11504 (archive.stsci.edu/proposal_sea...) Principal Investigator: Noll, Keith S. Date observation: 2009-07-27. Filters: F656N F658N F502N.

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Reposted by Melina Thévenot🏳️‍⚧️

Simeon Schmauß @stim3on.bsky.social · 28/09/2026

Great day here at ESOC, staying in the control room with the team while the images came down and processing the JMC images. Earth proved to be a real stunner with Africa and Madagascar in full view. #planetsci 🔭🧪

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Reposted by Melina Thévenot🏳️‍⚧️

ESA Space Science @science.esa.int · 28/09/2026

A successful Earth flyby improves Juice’s course to Jupiter Earlier today, Juice flew just 8640 km above the Indian Ocean and snapped these images with its onboard monitoring cameras. 1️⃣Africa, by Juice monitoring camera 2️⃣Madagascar, by Juice NavCam 3️⃣Moon, by Juice NavCam 🔭 🧪 #planetsci

Mostly black space, most of Earth visible at the top right of the image. Part of a spacecraft visible on the left.

Part of the island of Madagascar in black and white.

A crescent Moon, with about a quarter of the Moon showing. Many craters are visible.

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Melina Thévenot🏳️‍⚧️ @melina-iras07572.bsky.social · 28/09/2026

I like the asthetic of mixing real footage with animation (or VTuber in one case).

Animated girl in front of a supermarket at night.

Animated person at a footbath with a statue near a road.

Animated child jumping at the beach with the ocean at the background.

VTuber model posing in front of a motorbike.

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Melina Thévenot🏳️‍⚧️ @melina-iras07572.bsky.social · 28/09/2026

JWST detection of methane emission from a young brown dwarf arxiv.org/abs/2609.31178 Study of one young cold object in IC 348. Previous study already detected hydrocarbons. Now with higher resolution they get more evidence for large alkanes and methane emission.

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Melina Thévenot🏳️‍⚧️ @melina-iras07572.bsky.social · 25/09/2026

#Dragonfly of the genus Sympetrum (not sure about the species). Really beautiful animal. Marked because some people don't like bugs.

A dragonfly with four transperent wings, red dots at the tip of the wings. Red long tail. Dark red eyes. Orange body with fuzzy hairs.

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Melina Thévenot🏳️‍⚧️ @melina-iras07572.bsky.social · 25/09/2026

Grey heron (Ardea cinerea). Much seen in the area, but first time I got a good picture. I also like the reflection. #bird 🪶

A tall bird with mostly grey, some black and some white feathers. A long pointy beak with a black top and an orange bottom. Long white or grey legs.

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Melina Thévenot🏳️‍⚧️ @melina-iras07572.bsky.social · 25/09/2026

Two papers on metal-poor brown dwarfs with #JWST: arxiv.org/abs/2609.29365 (Aaron M. Meisner et al.) and arxiv.org/abs/2609.28746 (Chih-Chun Hsu et al.) Includes the first brown dwarf in the Gaia-Enceladus structure (remnant of a large merger galaxy).

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Reposted by Melina Thévenot🏳️‍⚧️

Landru79 @landru79.bsky.social · 22/09/2026

James #Webb Space Telescope #JWST The JWST/NIRCam Legacy Survey of the Galactic Center PI: Schoedel, Rainer. Proposal ID: 10678 6x MIRI 770 NIRCAM 480 212 yuval-harpaz.github.io/astro/jwst_l... NASA/ESA/CSA/STScI/j. Roger

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Reposted by Melina Thévenot🏳️‍⚧️

Lou Baya Ould Rouis @lbor.bsky.social · 22/09/2026

New paper out! ☄️ Extremely-low-resolution spectroscopy from Gaia is great at finding white dwarfs hosting remnant planetary systems! However, identifying hosts who originate from B- and A-type stars is more challenging and requires precise metal-enriched atmospheric fits. ➡️ arxiv.org/abs/2609.22033

arxiv.org

Searching for Massive Remnant Planetary System Hosts with White Dwarf Gaia XP Spectra

Remnant planetary systems around massive white dwarfs ($M_{\rm WD} > 0.8\,{\rm M}_\odot$) are intrinsically rare and remain poorly characterized. As the evolutionary endpoints of intermediate-mass B- ...

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Melina Thévenot🏳️‍⚧️ @melina-iras07572.bsky.social · 22/09/2026

Arches Cluster with #JWST NIRCam+MIRI full resolution image: commons.wikimedia.org/wiki/File:Ar...

A star cluster surrounded by orange clouds.

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Reposted by Melina Thévenot🏳️‍⚧️

Yvette Cendes @whereisyvette.bsky.social · 21/09/2026

If @science.org is covering it, I guess I should share something here- we have for the first time definitively detected radio emission from a planet around another star! 🔭🧪🎢 What does this mean? Details in thread! (But TL;DR- still not aliens) 🧵 www.sciencenews.org/article/exop...

sciencenews.org

First radio waves seen from an exoplanet hint at otherworldly auroras

The gas giant Beta Pictoris b, about 63 light-years away, has the mass of 10 Jupiters and a magnetic field thousands of times as strong as Earth’s.

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Melina Thévenot🏳️‍⚧️ @melina-iras07572.bsky.social · 21/09/2026

MICADO is the large imaging instrument (the only in the first generation of instruments). You can compare it to NIRCam on JWST or ACS on Hubble.

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Melina Thévenot🏳️‍⚧️ @melina-iras07572.bsky.social · 21/09/2026

Planet formation is such a fascinating subject. From the small grains, to large disks around stars, to young giant planets with moon forming disks and planets like earth. Here on bsky it is so difficult to convey all the knowledge that I have in my head.

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Melina Thévenot🏳️‍⚧️ @melina-iras07572.bsky.social · 20/09/2026

Elias 2-24 and surrounding nebula with @eso.org VISIONS commons.wikimedia.org/wiki/File:El... This T Tauri star hosts a protoplanetary disk and one protoplanet. Newly created wikipedia article: en.wikipedia.org/wiki/Elias_2...

A yellow star surrounded by a blue nebula.

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Melina Thévenot🏳️‍⚧️ @melina-iras07572.bsky.social · 19/09/2026

#JWST MIRI F770W image of the Sickle, near the galactic center. program: www.stsci.edu/jwst-program...

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Melina Thévenot🏳️‍⚧️ @melina-iras07572.bsky.social · 19/09/2026

#JWST NIRCam image of star-formation 5 arcmin from galactic center. Not sure about the name, but one overlaps with NAME Sgr A H2. program: www.stsci.edu/jwst-program...

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Melina Thévenot🏳️‍⚧️ @melina-iras07572.bsky.social · 18/09/2026

Planet Saturn with Hubble WFC3 (F395N, F505N, F631N) program: archive.stsci.edu/proposal_sea...

The planet, the rings and moons. Left to right: Mimas, Enceladus, Tethys (transiting, moon shadow), Dione and Rhea.

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Melina Thévenot🏳️‍⚧️ @melina-iras07572.bsky.social · 18/09/2026

Water Cloud and Chemical Modulations in the Coldest Brown Dwarf arxiv.org/abs/2609.20664 (Brittany E. Miles+)

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Melina Thévenot🏳️‍⚧️ @melina-iras07572.bsky.social · 17/09/2026

GAL 019.88-00.53 with #JWST MIRI (F560W, F770W, F1000W) program: www.stsci.edu/jwst-program...

An orange brown nebula and a bright blue star on the upper left, with some blue nebulae around it.

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Melina Thévenot🏳️‍⚧️ @melina-iras07572.bsky.social · 17/09/2026

Proper Motion of stars in the galactic center with #JWST NIRCam F182M. programs: 1306, 4515 www.stsci.edu/jwst-program...

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Melina Thévenot🏳️‍⚧️ @melina-iras07572.bsky.social · 16/09/2026

Large image of the galactic center with #JWST NIRCam (F212N, F480M). Original had a width of almost 12,000 pixels, here downsized to 4000 pixels. program: www.stsci.edu/jwst-program...

Dark nebulae, located in a band from the upper left to the lower right. Bright stars in the center and more to the right. An orange bright nebula in the center. This is the region where the supermassive black hole Sagittarius A* is located.

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Melina Thévenot🏳️‍⚧️ @melina-iras07572.bsky.social · 16/09/2026

Discovery of radio emission from the exoplanet β Pictoris b arxiv.org/abs/2609.16720 Was about time. They use MeerKAT (South Africa) and show that the emission comes from the planet and not the star (see figure 2 below) They detect highly circularly polarized bursts and persistent emission.

Blue rings representing the radio emission, overlaping with 1 sigma towards the planet b, but being outside the star and planet c (lower right).

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Melina Thévenot🏳️‍⚧️ @melina-iras07572.bsky.social · 15/09/2026

Another part of Sagittarius B1. The lower left nebula contains the Wolf-Rayet star 2MASS J17471225-2831215, which is surrounded by a small nebula. #JWST NIRCam (F212N, F480M) from the same program: www.stsci.edu/jwst-program...

Orange nebulae. The lower-left nebula is the brightest and has an half-circle shape.

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