janiceleeastro
@janiceleeastro.bsky.social
✨ looking to our future with NASA's Habitable Worlds Observatory (SuperHubble!) & AI
✨ studying star formation and star clusters in nearby galaxies with PHANGS, Hubble, JWST
✨ studying star formation and star clusters in nearby galaxies with PHANGS, Hubble, JWST
Pinned
#extragalactic #paperday arxiv.org/abs/2412.07862
✨🔭🧪 with STScI postdoc Jimena Rodriguez! where we search for dusty star clusters in 19 nearby galaxies using the PHANGS-JWST Treasury Survey, and find a very short timescale (<3 Myr) for the dust embedded phase. Fig 17 & 18 are my favs!
✨🔭🧪 with STScI postdoc Jimena Rodriguez! where we search for dusty star clusters in 19 nearby galaxies using the PHANGS-JWST Treasury Survey, and find a very short timescale (<3 Myr) for the dust embedded phase. Fig 17 & 18 are my favs!
Relieved to report that our PHANGS paper has finally been accepted for publication in ApJ! To our knowledge, this is the first census for dust obscured star-formation at the star cluster scale across a broad set of nearby galaxies. 🧵[1/n]🔭🧪#extragalactic
Congrats @leefeinberg.bsky.social !! 🎉🧪🔭
Lee Feinberg: The 2026 SPIE George W. Goddard Award in Space and Airborne Optics
For outstanding leadership through the design, integration, and delivery of optical systems that brought the objectives of #Webb and #Hubble into clear focus. @leefeinberg.bsky.social
spie.org/news/lee-fei...
For outstanding leadership through the design, integration, and delivery of optical systems that brought the objectives of #Webb and #Hubble into clear focus. @leefeinberg.bsky.social
spie.org/news/lee-fei...
January 22, 2026 at 7:03 PM
Congrats @leefeinberg.bsky.social !! 🎉🧪🔭
Reposted by janiceleeastro
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
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
December 8, 2025 at 8:06 AM
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
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
Reposted by janiceleeastro
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
The paper presents a catalog of JWST MIRI 10 µm and 21 µm sources across 19 nearby galaxies.
arxiv.org/abs/2509.16459
The Hidden Life of Stars: Embedded Beginnings to AGB Endings in the PHANGS-JWST Sample. I. Catalog of Mid-IR Sources
We 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...
arxiv.org
September 23, 2025 at 6:46 PM
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
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 🔭✨🧪
Congress passes minibus spending bill that rejects proposed NASA cuts
Congress has approved a fiscal year 2026 spending bill that largely restores funding proposed for deep cuts to NASA while canceling one major mission.
Congress has approved a fiscal year 2026 spending bill that largely restores funding proposed for deep cuts to NASA while canceling one major mission.
Congress passes minibus spending bill that rejects proposed NASA cuts
Congress has approved a fiscal year 2026 spending bill that largely restores funding proposed for deep cuts to NASA while canceling one major mission.
spacenews.com
January 16, 2026 at 6:53 PM
so grateful to everyone who showed up and made the case for sustaining science and discovery 🔭✨🧪
“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
🔭✨🧪🧵☄️
#exoplanets
#extragalactic
NASA Selects Tech Proposals to Advance Search-for-Life Mission - NASA
NASA announced Monday the selection of industry proposals to advance technologies for the agency’s Habitable Worlds Observatory concept – the first mission
www.nasa.gov
January 5, 2026 at 11:32 PM
“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
🔭✨🧪🧵☄️
#exoplanets
#extragalactic
January 5, 2026 at 5:42 PM
December 15, 2025 at 4:33 PM
Reposted by janiceleeastro
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...
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 Member States commit to largest contributions at Ministerial
The 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, ...
www.esa.int
November 27, 2025 at 4:26 PM
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...
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...
Reposted by janiceleeastro
Our special November issue, celebrating 30 years of exoplanets, is now here! https://bit.ly/483MH9I
#astronomy #exoplanets
#astronomy #exoplanets
November 18, 2025 at 12:04 PM
Our special November issue, celebrating 30 years of exoplanets, is now here! https://bit.ly/483MH9I
#astronomy #exoplanets
#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
#habitableworldsobservatory 🔭🧪☄️
The search for life is one frontier.
HWO will be built to unlock all the others too.✨
#extragalactic
Echoes of the First Stars: Massive Star Evolution in Extremely Metal-Poor Environments with the Habitable Worlds Observatory
A 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...
arxiv.org
November 14, 2025 at 7:09 PM
arxiv.org/abs/2511.03715
#habitableworldsobservatory 🔭🧪☄️
The search for life is one frontier.
HWO will be built to unlock all the others too.✨
#extragalactic
#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
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
NASA’s Habitable Worlds Observatory will do more than hunt for life in the 2040s.
This summer scientists put forward 100 ideas for the ‘scope including planetary defense, studying Venus, and even observing individual stars in distant galaxies.
Me in Nature Astronomy
www.nature.com/articles/s41...
This summer scientists put forward 100 ideas for the ‘scope including planetary defense, studying Venus, and even observing individual stars in distant galaxies.
Me in Nature Astronomy
www.nature.com/articles/s41...
NASA’s bold new telescope will do more than just hunt for life - Nature Astronomy
The Habitable Worlds Observatory will look for inhabited worlds beyond our Solar System in the 2040s and scientists are dreaming of what else it might do.
www.nature.com
November 10, 2025 at 5:04 PM
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
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
Reposted by janiceleeastro
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.
June 19, 2025 at 11:21 AM
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
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
October 16, 2025 at 8:13 PM
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
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
Reposted by janiceleeastro
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-...
www.scientificamerican.com/article/are-...
NASA’s First-Ever Alien-Hunting Space Telescope Could Enlighten Our New Dark Age
The Habitable Worlds Observatory is poised to tell us whether Earthlike planets are common—if it can get off the ground
www.scientificamerican.com
September 30, 2025 at 2:37 PM
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-...
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
iopscience.iop.org/article/10.3...
#extragalactic #astrosci
Spiral, elliptical or neither? 🤔
The latest image from the NASA/ESA Hubble Space Telescope features a hard-to-categorise galaxy, NGC 2775. It has features of both elliptical and spiral galaxies – so what type is it?
Read more 👉 esahubble.org/images/potw2... 🔭
The latest image from the NASA/ESA Hubble Space Telescope features a hard-to-categorise galaxy, NGC 2775. It has features of both elliptical and spiral galaxies – so what type is it?
Read more 👉 esahubble.org/images/potw2... 🔭
September 24, 2025 at 1:34 PM
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
iopscience.iop.org/article/10.3...
#extragalactic #astrosci
Reposted by janiceleeastro
🥳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
We're looking forward to the next steps, when its solar panels and sunshield are fitted ahead of the planned launch in 2026! 🔭 #Exoplanets
September 12, 2025 at 8:42 AM
🥳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
We're looking forward to the next steps, when its solar panels and sunshield are fitted ahead of the planned launch in 2026! 🔭 #Exoplanets
Reposted by janiceleeastro
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.
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.
September 11, 2025 at 2:06 PM
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.
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.
Reposted by janiceleeastro
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!
September 10, 2025 at 8:34 AM
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
A high fraction of close massive binary stars at low metallicity - Nature Astronomy
The 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...
www.nature.com
September 8, 2025 at 7:30 PM
"no evidence supporting a statistically significant trend of [O star] multiplicity properties with metallicity" still high (~70%) in the SMC - interesting! 🔭🧪 #AstroSci #extragalactic
Reposted by janiceleeastro
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
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
September 2, 2025 at 5:38 PM
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
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
Reposted by janiceleeastro
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 🔭 🧪 ☄️
July 29, 2025 at 1:23 PM
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 🔭 🧪 ☄️
Reposted by janiceleeastro
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!
August 15, 2025 at 2:45 AM
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!
Reposted by janiceleeastro
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
August 7, 2025 at 4:01 PM
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
Reposted by janiceleeastro
I 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 🔭
July 31, 2025 at 6:31 PM
I 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 🔭
what 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
🧵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
August 1, 2025 at 8:27 PM
what 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
🧵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