janiceleeastro @janiceleeastro.bsky.social · 24/09/2026Le mystère des petits points rouges ✨ 🔭🧪☄️ #extragalactic 040
janiceleeastro @janiceleeastro.bsky.social · 23/09/2026💙 the cover of the HWO-J workshop proceedings✨ iral2.ess.sci.osaka-u.ac.jp/~sumi/HWO_Ja... 🔭🧪☄️ #exoplanet #galactic #extragalactic 081
Reposted by janiceleeastroSpace Telescope Science Institute @stsci.edu · 15/09/2026#NASARoman activated the Wide Field Instrument—a 300-megapixel infrared camera that will allow it to explore wide swaths of the cosmos quickly. This test image captures the very first photons of starlight to reach the instrument—taken as an initial performance assessment: go.nasa.gov/4rg4qEc 8327109
Reposted by janiceleeastroBrett Morris @brettmorr.is · 30/08/2026I’ve been working at @stsci.edu to give everyone access to data from NASA’s Nancy Grace Roman Space Telescope. Our treasure chest is open for anyone, anywhere, anytime. And today, the telescope is IN SPACE. 🧪🔭🚀 #astrocode 110118
Reposted by janiceleeastroTod Lauer @todlauer.bsky.social · 30/08/2026The launch of the Roman Space Telescope 316825
Reposted by janiceleeastroPhil Plait @philplait.bsky.social · 30/08/2026If you want to keep up with news about the newly launched Roman Space Telescope, NASA has a blog for it. science.nasa.gov/blogs/roman/ 🔭 🧪science.nasa.govNancy Grace Roman Space Telescope Archives - NASA ScienceThe Nancy Grace Roman Space Telescope blog is NASA's hub for the mission's launch updates, where all are invited for behind-the-scenes looks on Roman's road to launch and beyond. This flagship mission... 214250
janiceleeastro @janiceleeastro.bsky.social · 30/08/202630 minutes to go until launch - GO #ROMAN! 🔭✨🧪☄️ 081
Reposted by janiceleeastroNASASpaceflight.com @nasaspaceflight.com · 29/08/2026NASA and SpaceX are set for the launch of the next great space observatory — the Nancy Grace Roman Space Telescope. Falcon Heavy is set to liftoff from LC-39A at 7:26 AM EDT (11;26 UTC). Weather is currently 50% “go.” More on this incredible mission ⬇️ www.nasaspaceflight.com/2026/08/roma... 2386
Reposted by janiceleeastroSarah Kendrew @sarahkendrew.bsky.social · 30/08/2026Tune in in 90 mins! 🚀 0105
Reposted by janiceleeastroAstronomer Royal for Scotland | Catherine Heymans @astroroyalscot.bsky.social · 30/08/2026Update! NASA's live countdown to "launch" is actually a live countdown to when their live coverage of the event will commence 🤷♀️ So coverage starts 11:20 UK, but the moment we all want to tune in for (i.e BLAST-OFF!) isn't until 12:26 UK... 👍🔭🛰️ 33710
Reposted by janiceleeastroAstronomer Royal for Scotland | Catherine Heymans @astroroyalscot.bsky.social · 01/07/2026At today's UKRI board meeting, the fate of UK particle physics and astronomy will likely be decided. Have we done enough to convince the powers-that-be to halt the proposed funding cuts? 🤞 Read Prof. Hiranya Peiris in Nature today eloquently explaining why these cuts are wrong.🧪🔭⚛️ 📖: rdcu.be/friwM 520375
janiceleeastro @janiceleeastro.bsky.social · 17/06/2026(1/3) 🔭🧪☄️ #extragalactic PHANGS-HST DR5 is now available on MAST, delivering the largest #hubble catalog to date of star clusters & associations with ages, masses, E(B-V): ~100,000 sources across 39 nearby spiral galaxies! archive.stsci.edu/hlsp/phangs (scroll to Galaxy Sample and Data Access) 1112
janiceleeastro @janiceleeastro.bsky.social · 13/06/2026GO ROMAN!! 🔭🧪☄️ #exoplanet #galactic #extragalactic 0294
janiceleeastro @janiceleeastro.bsky.social · 12/05/2026(1/n) 🧵 Now published in Part 1 of the HWO25 conference proceedings, this collection of 60 science cases illustrates the extraordinary scientific reach of the #HabitableWorldsObservatory from... 🧪🔭☄️ #extragalactic #exoplanets #galactic 12410
janiceleeastro @janiceleeastro.bsky.social · 08/04/2026Accepted 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 #extragalacticui.adsabs.harvard.eduTo What Extent Are Star Cluster Ages Encoded in Their Environments? Exploring the Spatial Distribution of Age-Related Information with PHANGS-HST Imaging and Convolutional Neural NetworksThe environments around star clusters evolve as stellar feedback reshapes the interstellar medium and dynamical processes reorganize the structure of the surrounding stellar field. As approximately si... 072
Reposted by janiceleeastroJohn F Wu @jwuphysics.bsky.social · 10/03/2026To 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 0101
Reposted by janiceleeastroHeidi B. Hammel @hbhammel.bsky.social · 25/02/2026NSF–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/... 1448
janiceleeastro @janiceleeastro.bsky.social · 26/02/2026This 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 0298
Reposted by janiceleeastroAlexis Quintana @alexis-space.bsky.social · 08/12/2025A 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 34711
Reposted by janiceleeastroHamid Hassani @hamidhassani.bsky.social · 23/09/2025My 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/2509.16459arxiv.orgThe Hidden Life of Stars: Embedded Beginnings to AGB Endings in the PHANGS-JWST Sample. I. Catalog of Mid-IR SourcesWe present a multiwavelength catalog of mid-infrared-selected compact sources in 19 nearby galaxies, combining JWST NIRCam/MIRI, HST UV-optical broadband, H$α$ narrow-band, and ALMA CO observations. W... 193
janiceleeastro @janiceleeastro.bsky.social · 16/01/2026so grateful to everyone who showed up and made the case for sustaining science and discovery 🔭✨🧪 14717
janiceleeastro @janiceleeastro.bsky.social · 05/01/2026“The Habitable Worlds Observatory is exactly the kind of bold, forward-leaning science that only NASA can undertake...” said NASA Administrator Jared Isaacman... 🔭✨🧪🧵☄️ #exoplanets #extragalacticnasa.govNASA Selects Tech Proposals to Advance Search-for-Life Mission - NASANASA announced Monday the selection of industry proposals to advance technologies for the agency’s Habitable Worlds Observatory concept – the first mission 3438
janiceleeastro @janiceleeastro.bsky.social · 15/12/2025🔭🧪☄️ #habitableworldsobservatory #extragalactic #exoplanets #galactic #stellarastro 0111
Reposted by janiceleeastroJosef Aschbacher @josefaschbacher.esa.int · 27/11/202522.1 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...esa.intESA Member States commit to largest contributions at MinisterialThe largest contributions in the history of the European Space Agency, €22.1 bn, have been approved at its Council meeting at Ministerial level in Bremen, ... 315629
Reposted by janiceleeastroNature Astronomy @natastron.nature.com · 18/11/2025Our special November issue, celebrating 30 years of exoplanets, is now here! bit.ly/483MH9I #astronomy #exoplanets 46324
janiceleeastro @janiceleeastro.bsky.social · 14/11/2025arxiv.org/abs/2511.03715 #habitableworldsobservatory 🔭🧪☄️ The search for life is one frontier. HWO will be built to unlock all the others too.✨ #extragalacticarxiv.orgEchoes of the First Stars: Massive Star Evolution in Extremely Metal-Poor Environments with the Habitable Worlds ObservatoryA remarkable span of frontier astrophysics, from gravitational-wave archaeology to the origin of the elements to interpreting snapshots of the earliest galaxies, depends sensitively on our understandi... 1120
janiceleeastro @janiceleeastro.bsky.social · 10/11/2025NASA'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 0194
Reposted by janiceleeastroKatie Mack @astrokatie.com · 19/06/2025Chatbots — 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. 6263661211258
janiceleeastro @janiceleeastro.bsky.social · 16/10/2025post-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 1379
Reposted by janiceleeastroLee Billings @leebillings.bsky.social · 30/09/2025Now 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-...scientificamerican.comNASA’s First-Ever Alien-Hunting Space Telescope Could Enlighten Our New Dark AgeThe Habitable Worlds Observatory is poised to tell us whether Earthlike planets are common—if it can get off the ground 27834
janiceleeastro @janiceleeastro.bsky.social · 24/09/2025One 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 4398
Reposted by janiceleeastroGerman Aerospace Center (DLR) @dlr-en.bsky.social · 12/09/2025🥳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 0235
Reposted by janiceleeastroGovernor JB Pritzker @govpritzker.illinois.gov · 11/09/2025Today, 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. 14095191955
Reposted by janiceleeastroHeidi B. Hammel @hbhammel.bsky.social · 10/09/2025Heads 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! 0129
janiceleeastro @janiceleeastro.bsky.social · 08/09/2025"no evidence supporting a statistically significant trend of [O star] multiplicity properties with metallicity" still high (~70%) in the SMC - interesting! 🔭🧪 #AstroSci #extragalacticnature.comA high fraction of close massive binary stars at low metallicity - Nature AstronomyThe analysis of radial velocity variations of O-type stars in the Small Magellanic Cloud reveals a large fraction of close binaries, suggesting that binary physics also plays a prominent role in the l... 0182
Reposted by janiceleeastroJohn F Wu @jwuphysics.bsky.social · 02/09/2025Another 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 1114
Reposted by janiceleeastroSpace Telescope Science Institute @stsci.edu · 29/07/2025The 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 🔭 🧪 ☄️ 17117
Reposted by janiceleeastroDr. Jessie Christiansen @aussiastronomer.bsky.social · 15/08/2025There 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! 21033
Reposted by janiceleeastroKara B @karabrug.bsky.social · 07/08/2025Next 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 131
Reposted by janiceleeastroJohn Debes @johndebes.bsky.social · 31/07/2025I said this recently at #HWO2025, but I'll also say it here in light of the upcoming @nancyromansci.bsky.social call for white papers for the coronagraph: If you don't do planets and disks, please put a white paper in! I'm happy to give advice #astrosci 🔭 1147
janiceleeastro @janiceleeastro.bsky.social · 01/08/2025what a week for our future✨ #HWO25 🧵coming soon🔭🧪☄️ @mmacgreg.bsky.social @hbhammel.bsky.social @bmacastro.bsky.social @dawngelino.bsky.social @aussiastronomer.bsky.social @stsci.edu @aura-astronomy.bsky.social @justtheletteru.bsky.social @vividreams.bsky.social @leefeinberg.bsky.social +500 others 44710
Reposted by janiceleeastroDr./Prof. Meredith MacGregor @mmacgreg.bsky.social · 29/07/2025Back for another day of #HWO25 at the stunning at the @jhuartssciences.bsky.social Bloomberg Center! 172
Reposted by janiceleeastroHeidi B. Hammel @hbhammel.bsky.social · 28/07/2025Lee Feinberg - principal architect for the Habitable Worlds Observatory - discusses various options for the telescope 🔭 and the possible rockets 🚀 that will launch it at #HWO25 0131
Reposted by janiceleeastroHeidi B. Hammel @hbhammel.bsky.social · 28/07/2025Jessie Christiansen provides historical and scientific context for exoplanet studies “the ‘Neptunes’ are the primary test bed for testing algorithms and tools for exoplanet research” 🔭 0131
Reposted by janiceleeastroHeidi B. Hammel @hbhammel.bsky.social · 28/07/2025Dr. Giada Arney kicks off the Habitable Worlds Observatory science and technology conference in Washington DC 🔭 with a great talk about habitability writ large 0181
Reposted by janiceleeastroDr. Jessie Christiansen @aussiastronomer.bsky.social · 27/07/2025Lookout DC, we’re on the way!!! #HWO25 0562
Reposted by janiceleeastroHeidi B. Hammel @hbhammel.bsky.social · 30/05/2025Witness the *proposed* devastation of NASA science. If this concerns you, consider exploring the tools provided to make your opinions known: www.planetary.org/save-nasa-sc...planetary.orgSave NASA Science - Action HubNASA science faces record cuts. Take action to stop it—we'll show you how. 5342202