Accepted for publication in ApJ!✨🔭🧪
ui.adsabs.harvard.edu/abs/2026arXi...
the result of a new collaboration with machine learning experts to explore modeling of the evolution of environments around star clusters with CNNs
@jwuphysics.bsky.social
#extragalactic
Figure 1 of the paper, showing 112x112 HST NUV//U/B/V/I image cutouts that are used for age-dating clusters (in this case, all around ~100 Myr).
To what extent are star cluster ages encoded in their environments?
Congrats to my coauthors Javier Viaña, Janice Lee, Andrew Vandenburg, and the PHANGS collaboration on this paper! (and be on the lookout for a part two 👀)
arxiv.org/abs/2603.07289
Countless star trails appear as colorful brushstrokes spread across the night sky above the NSF–DOE Vera C. Rubin Observatory. This mesmerizing image was created using long-exposure photography, a technique in which a photographer allows light to enter their camera lens for a period of several minutes to several hours. The camera captures the subject’s movements, and the resulting image shows the flow of time in a single shot. During its decade-long Legacy Survey of Space and Time (LSST) Rubin will use a technique known as difference imaging: equipped with the largest camera ever built, Rubin will image the southern sky every few nights. Scientists will stack the best images in each filter each year into ultra-long exposures and create template images of the southern sky. When this template is compared to individual images, scientists will be able to identify ‘movements’ in the night sky, such as new supernovae or the 'pulsations' of variable stars. After 10 years and thousands of exposures, Rubin will produce an unprecedented ultra-wide, ultra-high-definition, time-lapse record of our Universe — the ultimate movie of the night sky. This image was captured by Hernán Stockebrand, a NOIRLab Audiovisual Ambassador. Credit: RubinObs/NOIRLab/SLAC/NSF/DOE/AURA/H. Stockebrand
NSF–DOE Rubin Observatory 🔭 has issued its first scientific alerts, marking a historic milestone in astrophysics. Expected to increase to seven million alerts per night (!!!), these first alerts start a new era of dynamic, real-time observation of the night sky. More: noirlab.edu/public/news/...
This galaxy is one of the most enigmatic in our PHANGS survey✨🔭🧪☄ Today's @apod.shinyakato.dev compares our Webb infrared and Hubble optical images...
(Find these color-composite images, science-ready imaging data, plus catalogs of star clusters at archive.stsci.edu/hlsp/phangs ) #extragalactic
Congrats @leefeinberg.bsky.social !! 🎉🧪🔭
A new census of OB associations with Gaia!
In this study, we took advantage of my OB stars map to find new OB associations within 1 kpc. The goal was to create a useful reference catalogue for this era, and to trace the star formation and structure of the local Milky Way.
#stellarastro #galactic
My recent PhD paper, titled “The Hidden Life of Stars: Embedded Beginnings to AGB Endings in the PHANGS-JWST Sample. I. Catalog of Mid-IR Sources”, is out!
The paper presents a catalog of JWST MIRI 10 µm and 21 µm sources across 19 nearby galaxies.
arxiv.org/abs/2509.16459
so grateful to everyone who showed up and made the case for sustaining science and discovery 🔭✨🧪
“Humanity is waiting for the breakthroughs this mission is capable of achieving and the questions it could help us answer about life in the universe. We intend to move with urgency, and expedite timelines to the greatest extent possible to bring these discoveries to the world.”
“The Habitable Worlds Observatory is exactly the kind of bold, forward-leaning science that only NASA can undertake...” said NASA Administrator Jared Isaacman...
🔭✨🧪🧵☄️
#exoplanets
#extragalactic
22.1 billion euros subscribed.
A record.
A first.
And a clear message that Europe is serious about space and that @esa.int is the agency it trusts to deliver.
A historic Ministerial. A united Europe. A stronger ESA.
www.esa.int/About_Us/Cor...
Our special November issue, celebrating 30 years of exoplanets, is now here! https://bit.ly/483MH9I
#astronomy #exoplanets
arxiv.org/abs/2511.03715
#habitableworldsobservatory 🔭🧪☄️
The search for life is one frontier.
HWO will be built to unlock all the others too.✨
#extragalactic
NASA's #habitableworldsobservatory
building a #superhubble in the race to answer fundamental questions about life in the Universe, the place of humanity in the cosmos, and where explorers could dare to go next✨🧪🔭☄️ #exoplanet #extragalactic
Chatbots — LLMs — do not know facts and are not designed to be able to accurately answer factual questions. They are designed to find and mimic patterns of words, probabilistically. When they’re “right” it’s because correct things are often written down, so those patterns are frequent. That’s all.
post-JWST deadline reflections...
the ESA/Hubble Picture of the Week returns to the galaxy that started our PHANGS team journey with JWST ✨🔭🧪
iopscience.iop.org/collections/...
and so much still to be learned 🤞
#extragalactic
Now on @sciam.bsky.social: NASA’s next-gen Habitable Worlds Observatory may be our best chance to find alien life. But can a nation busy ripping itself apart unite to launch a mission to solve life’s cosmic mysteries? By @nadiadrake.bsky.social (and me).
www.scientificamerican.com/article/are-...
One of my faves, among the galaxies that we're studying. Uncommonly beautiful because of its striking "flocculent" spiral morphology. We've learned its star clusters tell a story of gas accreted from a neighbor, rejuvenating the disk🧪🔭
iopscience.iop.org/article/10.3...
#extragalactic #astrosci
🥳PLATO, @esa.int's planet-hunting space telescope, has arrived at their ESTEC facility in the Netherlands, after its successful integration in Germany in June.
We're looking forward to the next steps, when its solar panels and sunshield are fitted ahead of the planned launch in 2026! 🔭 #Exoplanets
Today, we mourn the memory of those we lost on September 11, 2001.
We also come together to honor the brave heroes, like our first responders, who risked their lives that tragic day to save countless others. Their sacrifice can never be repaid.
We will never forget.
Heads up to attendees of #epscdps2025 - there will be a splinter session about Solar System planning for the Habitable Worlds Observatory (HWO) in the Ganymede Room TODAY (Weds) at 3 pm!
"no evidence supporting a statistically significant trend of [O star] multiplicity properties with metallicity" still high (~70%) in the SMC - interesting! 🔭🧪 #AstroSci #extragalactic
Another fantastic paper that arose from our @kitp-ucsb.bsky.social GalEvo23 program.
This one is from the inimitable Kartheik Iyer, who also shared a fantastic takeaway figure on how simulated feedback affects galaxy star formation histories.
#AstroSci #extragalactic
The Habitable Worlds Observatory is early in its development as a large infrared/optical/ultraviolet space telescope. Many designs are under consideration, including this artist's concept animation. More about the planned observatory: go.nasa.gov/HWO #HWO2025 #HWO25 🔭 🧪 ☄️
A photo of Jessie in a grey suit and pink shirt in front of a giant black screen with the NASA meatball on it.
There was a photographer for the first two days of the Habitable Worlds Observatory conference in Washington DC a few weeks ago - it's so rare to actually get a nice photo dressed up and giving a talk!
Next Friday 8/15 is the deadline to endorse #HabitableWorldsObservatory science cases. If you think it is important to consider whether a planet has the right geology in place to host life as we know it _before_ looking for life there, please endorse our case: bit.ly/GeochemHab_endorse #HWO25
(3/n) #HWO25 speakers, esp on 1st day, not only engaged the mind, but spoke to the soul, reminding us of the wonder & purpose that lie at the heart of our work to understand the universe, the origin of galaxies and elements, and the place of humanity in the cosmos✨🔭🧪 www.youtube.com/live/V_rPlVR...
(2/n) #HWO25 talks on STScI Research YouTube Channel🔭🧪☄️ #exoplanets #extragalactic www.youtube.com/playlist?lis...
