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Dr. Alison Duck

@astroalison.bsky.social
582 followers 244 following 13 posts

Exoplaneteer - OSU Astronomy PhD

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Reposted by Dr. Alison Duck
Space Telescope Science Institute @stsci.edu · 30/08/2026
This morning's launch of the Nancy Grace Roman Space Telescope from the Kennedy Space Center was amazing! Roman is now on a million-mile journey to Lagrange point 2, where it will soon reveal the universe’s darkest secrets: go.nasa.gov/4qIa69I #NASARoman 🔭 Credit: J. Barrientes/STScI.
A rocket is launching into the sky from a launch pad, emitting bright flames and smoke. Trees are visible in the foreground.Crowd capturing a SpaceX rocket launch with smartphones, against a sunrise sky.A rocket launches into a cloudy sky, emitting a bright trail of light and smoke.A rocket with a fiery trail ascending into a clear blue sky, leaving a thick plume of white smoke underneath.
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Caltech IPAC @caltechipac.bsky.social · 30/08/2026
"There is so much out there to explore," said Patrick Lowrance, the Roman Science Support Center co-lead at IPAC. Congrats to NASA's Nancy Grace Roman Space Telescope on a successful launch 🚀 🔭 🧪 ⚛️ 👩‍🔬 www.ipac.caltech.edu/news/ready-t...
ipac.caltech.edu
Ready to Roman: Caltech Teams Celebrate Telescope Launch, Look Ahead to Future
The next generation of exoplanet imaging technology, designed and built at NASA's Jet Propulsion Laboratory (JPL), which Caltech manages for the agency, has launched aboard NASA's Nancy Grace Roman Sp...
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Derek Newsome @derek.space · 30/08/2026
Liftoff of the Nancy Grace Roman Space Telescope! NASA’s next great observatory is on it’s way to showing us the stars
The launch of the Nancy Grace Roman Space Telescope. The Falcon Heavy rocket is in the middle of the frame with its orange exhaust down the middle. A smoke plume goes to the left of the pad. A lake in the bottom half of the frame reflects the rocket’s exhaust.
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Jeremy Bailin @astrobailin.bsky.social · 30/08/2026
Roman launch transits the sun. From NASASpaceflight feed.
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Dr. Alison Duck @astroalison.bsky.social · 30/08/2026
Ad Astra Roman!!!!
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Dr. Alison Duck @astroalison.bsky.social · 28/08/2026
Getting to share the excitement for all the cool exoplanets #Roman will find at the Kennedy Space Center!
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Meghan Bartels @meghanbartels.bsky.social · 28/08/2026
I'm so pleased to have made my debut in @sciencenews.bsky.social with this story about (a taste of) all the cool science NASA's Nancy Grace Roman Space Telescope--launching Sunday!--is due to tackle 🧪 🔭
sciencenews.org
NASA’s new space telescope will reveal the universe like never before
NASA’s new Nancy Grace Roman space telescope will tackle nearly every aspect of astrophysics, including dark matter, dark energy and alien planets.
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Dr. Alison Duck @astroalison.bsky.social · 29/07/2026
The Nancy Grace Roman Space Telescope is poised to discover ~100,000 planets through the transit method! My talk on charactering the stars Roman will observe to search for planets for the 2026 Sagan Summer Workshop is now on YouTube! youtu.be/W8JQO21Cq8Y?...
youtu.be
Characterizing Transit Host Stars - Alison Duck (JPL)
YouTube video by Sagan Summer Workshop
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Kevin Hardegree-Ullman @kevinkhu.bsky.social · 20/07/2026
If you're at #Sagan2026, come check out my *interactive* #exoplanet poster! The Near-Infrared Transit Explorer (NITE) is a survey mission concept designed to find Earth-sized planets in the habitable zones of M dwarfs!
A conference poster for the Near-Infrared Transit Explorer (NITE), and exoplanet surve mission concept focused on M dwarf habitable zone planets.
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Dr. Alison Duck @astroalison.bsky.social · 20/07/2026
#Sagan2026 is off to a great start!! We have many amazing posters everyone should check out! And if you are curious about designing your own poster the video recording of my PROTO session “Communication Tips & Tricks for Posters and Pops” is live on YouTube! youtu.be/1V4c64xlr7M?...
youtu.be
PROTO: Tips and Tricks for Effective Communication with Scientific Posters
YouTube video by Sagan Summer Workshop
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Dr. Caprice Phillips @capricephillips.bsky.social · 14/07/2026
It's paper day! *with a typo in the title* arxiv.org/abs/2607.09851 In this work, we conducted a small spectroscopy survey of 32 FGK stars that all host brown dwarf companions. This host star sample includes 14 brown dwarf companions that have already obtained or incoming JWST data.
arxiv.org
Benchmark Brown Dwarf Systems I: Chemical Abundance Analysis of FGK Stars with Wide-Separation Brown Dwarf Companions Using PEPS
We present results from a spectroscopic survey of 32 FGK stars hosting brown dwarfs, using high-resolution optical spectra (R = 130,000 and 50,000) obtained with the PEPSI spectrograph on the Large Bi...
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Seven Machina Rasmussen @toomanyspectra.bsky.social · 03/07/2026
here you go!!
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Kevin Hardegree-Ullman @kevinkhu.bsky.social · 15/06/2026
New paper led by Andrew Hotnisky (grad student, University of Florida)! COUNTESS I: A Uniformly Vetted Catalog of Known and New Transiting Exoplanets in the TESS Northern Continuous Viewing Zone arxiv.org/abs/2606.13789 #Exoplanets #AAS248 🔭
arxiv.org
COUNTESS I: A Uniformly Vetted Catalog of Known and New Transiting Exoplanets in the TESS Northern Continuous Viewing Zone
The Transiting Exoplanet Survey Satellite (TESS) has transformed the study of nearby exoplanetary systems; however, its nominal observing strategy limits sensitivity to planets with orbital periods sh...
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Dr. Alison Duck @astroalison.bsky.social · 02/04/2026
Go Artemis!! Peaked into the watch party at JPL!
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Dr. Jessie Christiansen @aussiastronomer.bsky.social · 27/02/2026
TESS confirms what we saw with Kepler and K2 - on average, ***every single small red star has a planet around it***! And a short-period one at that (<30 days). And you know what the galaxy is mostly made of? Small red stars. PLANETS. PLANETS EVERYWHERE!!! Happy weekend pondering that, everyone.
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Dr. Alison Duck @astroalison.bsky.social · 12/02/2026
Really interesting white paper! And a great reminder to align our methods with the outcomes we desire. If our outcomes value human discovery and wonder, our methods (and training of students) should value those too!
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Astronomer Royal for Scotland | Catherine Heymans @astroroyalscot.bsky.social · 28/01/2026
The new #ASPIRES3 Physics report is difficult reading. Physics: * remains male-dominated (24% fem) & privileged * aspirations decline from the start to end of school 😔 * is considered the least interesting, most difficult science 😭 * is for brainy "geeks" 😮‍💨 Lots of useful recommendations though🎢🧪👩‍🔬⚛️
Front cover of the ASPIRES3 Physics report.  A simple atom-style logo.
Text:  Young People's STEM trajectories Age 10-22
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Ethan Siegel @startswithabang.bsky.social · 21/01/2026
How a solar radiation storm created January 2026’s aurora The first good auroral show of 2026 began not with a solar flare nor a coronal mass ejection, but a solar radiation (particle) storm. It's the first big one since 2003! bigthink.com/starts-with-... #space #particle #sun #astro #heliophysics
bigthink.com
How a solar radiation storm created January 2026's aurora
The Sun often produces solar flares and coronal mass ejections, but a rare solar radiation storm made the 2026's first great auroral show.
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American Astronomical Society (AAS) @aas.org · 16/01/2026
Read more about the bills passed yesterday (aas.org/posts/news/2...), and thank your members of Congress today! aas.org/action-alert...
Banner with the AAS logo stating "Congress has rejected the proposed cuts to NSF, NASA, and other science agencies."
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Jonathan McDowell @planet4589.bsky.social · 11/01/2026
Deployment of Pandora
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Dr. Jessie Christiansen @aussiastronomer.bsky.social · 09/01/2026
Now that I can take a breath, I'm SUPER EXCITED we can share that NASA's first Pioneer-class mission, Pandora, is launching this weekend, January 11, at 5:19am!!! I was the Mission Archive Scientist on the proposal, and the NASA Exoplanet Archive will host the mission data. svs.gsfc.nasa.gov/14945/
svs.gsfc.nasa.gov
NASA Scientific Visualization Studio | NASA’s Pandora Satellite to Explore Exoplanets and Stars
Artist’s concept of NASA’s Pandora mission, which will help scientists untangle the signals from exoplanets’ atmospheres — worlds beyond our solar system — and their stars.Credit: NASA's Goddard Space...
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Michael Li (李之樸) @mcpli.bsky.social · 31/12/2025
The final Calvin and Hobbes, which appeared in papers 30 years ago today.
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Kevin Hardegree-Ullman @kevinkhu.bsky.social · 18/12/2025
We've added a tool to upload your published parameters to the NASA Exoplanet Archive! This tool can help us get your new planets and planet parameters onto the archive, so check it out and consider using for your next #exoplanet paper! 🔭🧪 exoplanetarchive.ipac.caltech.edu/support/uplo...
exoplanetarchive.ipac.caltech.edu
Exoplanet Archive Published Data Submission Page
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American Astronomical Society (AAS) @aas.org · 17/12/2025
First time at #AAS247? You’re not alone! ✨ Check out this orientation guide from the AAS Education Committee, created to help students and first-time attendees navigate the meeting. 🔭 aas.org/meetings/aas... @education.aas.org
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Daniel Bellingradt @dbellingradt.bsky.social · 21/04/2024
You see the printed black square from a page in Robert Fludd's "Utriusque cosmi maioris" (1617) that represented the nothingness that was prior to the universe. The square is framed by four sentences in Latin: "Et sic in infinitum" (And so on to infinity). #earlymodern #skystorians
You see a black square representing the nothingness that was prior to the universe, printed in a book with a wood block. The book titled Robert Fludd "Utriusque cosmi maioris scilicet et minoris metaphysica..." (1617),
Access the page: https://wellcomecollection.org/works/gbbychu2/images?id=gzy3gujm
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Jason Wang @thejason.wang · 12/12/2025
New orbit movie just dropped. This one is for the newly discovered circumbinary planet HD 143811 AB b. This 9-year timelapse was made through an international collaboration with me, Nathalie Jones (Northwestern graduate student), and Vito Squicciarini (Exeter postdoc)
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CIERA @nuciera.bsky.social · 11/12/2025
A discovery fit for Star Wars: CIERA astronomers have directly imaged a Tatooine-like planet orbiting two suns — and it’s closer to its stars than any other directly imaged planet in a binary system. 🌟🌟🪐https://bit.ly/4q8Dfto @thejason.wang #Exoplanets #Astronomy #Northwestern #CIERA
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Roman for Scientists @nancyromansci.bsky.social · 10/12/2025
🚀The Roman Cycle 1 Call for Proposals is OPEN! Unlock new discoveries with the Wide Field Instrument—your science starts here! Apply for funding to analyze Roman data, perform theory/lab research, and propose new observations. 🔭☄️ 📅 Deadline: Mar 17, 2026 (5 PM PDT) 📝 bit.ly/4q3jbbL
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Emily Hunt @emily.space · 09/12/2025
New paper led by Fabian Polnitzcky & with @sratzenboeck.bsky.social + @joaoalves.bsky.social: based on the ages of stars with infrared excess in Sco-Cen, it seems planet-forming disks last around twice as long as previous estimates suggest - giving twice as long for planets to form. 🔭☄️ #exoplanets
Their input source selection in the Sco-Cen region, showing stars with (blue) and without (orange) disks.The fraction of young stars with disks as a function of age, based on three different selection methods. All show that many stars appear to have disks to ages well beyond ~10 million years, with a median lifetime of ~5 million years!
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Dr. Emily Gilbert @emdwarf.bsky.social · 08/12/2025
omgomgomg beta.ideas.lego.com/product-idea...
beta.ideas.lego.com
Observatory | LEGO® Ideas
The universe has always fascinated humans, and observatories play an important role in unraveling its secrets and wonders in our Milky Way and distant galaxies.…
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Emily Lakdawalla 🏳️‍⚧️ Uranus Expert @elakdawalla.bsky.social · 05/12/2025
In good news: "NASA Completes Nancy Grace Roman Space Telescope Construction" www.jpl.nasa.gov/news/nasa-co...
jpl.nasa.gov
NASA Completes Nancy Grace Roman Space Telescope Construction
Set to launch by May 2027, the spacecraft will study mysteries of the cosmos while also testing the Coronagraph Instrument, a new technology designed and built by JPL.
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Space Telescope Science Institute @stsci.edu · 04/12/2025
NASA has completed the construction of #NASARoman! Last month, technicians joined the inner and outer portions of the observatory in Maryland. After final testing, Roman will move to the launch site at the Kennedy Space Center for launch preparations in summer 2026: go.nasa.gov/48EqnE8 🔭 🧪
Two technicians in clean suits inspect a the completed Roman Space Telescope in a clean room at a NASA assembly facility.
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Alexandra Witze @alexwitze.bsky.social · 03/12/2025
You've probably heard about how the rapidly increasing numbers of satellites are affecting #astronomy. A new paper in @nature.com looks at the possible future for space-based telescopes — and finds 96% of some images could be impacted. 🧪🔭🛰️ By @jennaahart.bsky.social www.nature.com/articles/d41...
nature.com
Satellite swarms set to photobomb more than 95% of some telescopes’ images
Planned megaconstellations would contaminate the view of the cosmos of four orbiting telescopes
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Black In Astro @blackinastro.bsky.social · 01/12/2025
Join us tomorrow from 2-3pm ET for a special fireside chat on the art of storytelling within space sciences! This is a free event featuring a chat and Q&A with Joy Jones and Tim Fielder. As always, the link to register can be found on our website, we hope to see you there 🌟
A digital flyer titled “Fireside Chat” has a starry space background with a faint campfire image. It announces a Black In Astro event on December 3, 2025, from 2–3 PM ET about storytelling in space sciences. Two speakers are featured with circular photos. The first is a smiling woman identified as Joy Jones, described as a trainer, poet, playwright, and author of books including The Sky Is Not Blue, Private Lessons, and Tambourine Moon. The second is a smiling bearded man resting his head on his hand, identified as Tim Fielder, described as an illustrator, concept designer, cartoonist, and animator known for his Afrofuturism work and the graphic novel Matty’s Rocket. The flyer notes that viewers can register on Zoom at blackinastro.com, with the Black In Astro logo in the corner.
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Dr. Alison Duck @astroalison.bsky.social · 01/12/2025
@bot.astronomy.blue signup
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Daniel | ScienceSocks et al. @sciencesocks.bsky.social · 24/11/2025
[On the bench today ⚒️ #BehindTheScenes] I'm working on these ✨amazing✨ hand-painted #mars #rover pendants as part of my collab with celestial pottery artist @amyraehill.bsky.social 🤩 All one-of-a-kind, launching soon: sciencesocks.co/page... 🔭🐡🧪🎨
Rectangular ceramic pendant in with a Martian landscape in red and orange. Showing a tiny Perseverance Mars rover and Ingenuity helicopter flying overhead. Attached to a sterling silver chain. More pendants in the background and some jewelry tools on the edge of the frame.
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Roman for Scientists @nancyromansci.bsky.social · 20/11/2025
Join this month's Roman Virtual Lecture Series to learn about Photometric calibration uncertainties in stage IV supernova cosmology.    Subscribe to tinyurl.com/RVLSsubscr for call-in details! 📅  Thurs Nov 20 (Today!) 🕐 4-4:30 PM EDT 🔗 bit.ly/4m7MkjY
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Katie Mack @astrokatie.com · 20/11/2025
This is a real image of a real thing that exists in the universe! And because a bunch of humans decided to get together and build a space telescope, we get to see it! 🤯
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Dr. Jillian Scudder @jillianscudder.com · 20/11/2025
First time in a while where I’ve had the “wait that’s an IMAGE. That’s the DATA.” double take.
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Alexandria Ocasio-Cortez @aoc.bsky.social · 10/11/2025
The average SNAP benefit per month is $177 a person. The average ACA benefit per month is up to $550 a person. People want us to hold the line for a reason. This is not a matter of appealing to a base. It’s about people’s lives. And working people want leaders whose word means something to them.
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Dr. Jessie Christiansen @aussiastronomer.bsky.social · 08/11/2025
Hey you. YES YOU. Super persnickety astronomer. You know who you are. NASA Exoplanet Archive just updated our overview pages so the stars are closer to their actual colours, as per Harre & Heller (2021) and Cranmer (2021). You're welcome. 😎 (You can thank @kevinkhu.bsky.social!)
Screenshot of the NASA Exoplanet Archive overview page for HD 4113, a triple star system with three differently coloured stars (one of which has a planet, HD 4113 b).
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Physghoul 👻 🎃 @physgal.bsky.social · 03/11/2025
Dear Physicists and Physics fans, I would like to encourage you to celebrate #WomenInPhysics Day this Friday, November 7th. Why November 7th? Because it is the birthday of two of the most impactful women physicists of the 1900's: Marie Curie and Lise Meitner. 🎢 ⚛️ 🧪 👩‍🔬
WOMEN IN PHYSICS DAY! 

In honor of the pioneering women in physics who broke down barriers to do what they love, we celebrate Women in Physics Day on November 7th, the birthdate of both Marie Curie and Lise Meitner.

Marie Skrodowska-Curie (1867-1934)

Radioactivity pioneer, two-time Nobel laureate 

A giant of science, Marie Sktodowska-Curie conducted pioneering research on radioactivity, a term she coined. She discovered two elements, founded two medical research centres, won two Nobels, and invented mobile X-ray units (dubbed petites Curies), saving countless lives in World War 

Lise Meitner (1878-1968) Nuclear physicist

When Lise Meitner was a teen, Austria restricted female higher education. She pursued physics anyway, and 25 years later became the first woman in Germany to hold a professorship in physics. She helped discover nuclear fission, but was contentiously not awarded the 1944 Nobel alongside collaborator Otto Hahn.

NOVEMBER 7TH
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Dr. Jessie Christiansen @aussiastronomer.bsky.social · 04/11/2025
Already registered for #AAS247, but didn’t sign up for any workshops? Here’s how to sign up: aas.org/meetings/aas... 1) Click “Register for AAS 247” from the conference webpage 2) Scroll to the table with the section labeled “1. Workshops” 3) Scroll to the workshop you want , click “Add” (1/2)
aas.org
AAS 247: Workshops | American Astronomical Society
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HiRISE Beautiful Mars (NASA) @uahirise.bsky.social · 28/10/2025
HiRISE 3D: Fine Layer Deformation Redux Today’s HiPOD doubles as our 3D post because it was just too good to pass up! (See the HiPOD for details.) Full image: www.uahirise.org/anaglyph/ESP_08927… NASA/JPL-Caltech/University of Arizona #Mars #NASA #science
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Patrick Vallely @pjvphotography.bsky.social · 22/10/2025
Making Lemmonade 🍋 Couldn’t pass up a chance to go after Comet Lemmon given last night’s combination of clear skies and a new moon. Good way to replenish the soul after that heartbreaking ALCS finale. 😅 🏷️: 📸🌿🐡🔭
Comet Lemmon stretches across the sky over a dimly lit mountain ridge. The comet is relatively faint, but its teal core is easily visible, and its tail extends quite a ways up into the corner of the image.
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Chanda Prescod-Weinstein 🌌 @chanda.blacksky.app · 20/10/2025
Growing list of astronomy PhD programs that are pausing admissions this year 🔭 aas.org/posts/news/2...
aas.org
AAS Working Group Shares Status of 2026 Astronomy Graduate Admissions | American Astronomical Society
The Working Group on Graduate Admissions has surveyed over 150 astronomy and physics graduate programs to understand how the current funding and policy environment has affected their admissions plans ...
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Brett Morris @brettmorr.is · 18/10/2025
For this money, your tax dollars could have paid for a second TESS mission to find planets, but instead:
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Dr. Caprice Phillips @capricephillips.bsky.social · 16/10/2025
So proud of Phoenix! She’s amazing, does cool research and has done so much at an early stage in her career. She’s applying to grad programs too! So 👀. Y’all would be lucky to have her! #BlackInAstro
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Dr. Clarissa R. Do Ó @astroclary.bsky.social · 14/10/2025
my last phd thesis paper is now accepted to ApJ and is on the arXiv today! arxiv.org/abs/2510.11021 We simulate the PDS 70 exoplanet system's future using hydrodynamic + n-body simulations involving the disk and the two planets to see how its orbital architecture evolves! 🪐🪐
arxiv.org
On The Orbital Evolution of Multiple Wide Super-Jupiters: How Disk Migration and Dispersal Shape the Stability of The PDS 70 System
Direct imaging has revealed exoplanet systems hosting multiple wide-orbit Super-Jupiters, where planet-planet interactions can shape their long-term dynamical evolution. These strong perturbations may...
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Laura Lopez @ohdearz.bsky.social · 07/10/2025
Valuable info about the Physics Nobel Prize today from Prof. Joseph Barranco at SFSU on Martinis and Devoret being a grad student and postdoc in Clarke's lab at UC Berkeley & Clark and Devoret being immigrants. "California *public* education made this happen. Immigration made this happen." ⚛️
Joseph Barranco posted on social media: Go Bears! Nobel Prize in Physics goes to 3 physicists studying mesoscopic quantum phenomena... Work was done in the 1980s in UC Berkeley Professor John Clarke's lab with his graduate student John Martinis and postdoctoral fellow Michel Devoret... all 3 share the Nobel Prize.  Must also point out that both Clarke and Devoret are immigrants from the UK and France, respectively.  All 3 are pioneers in the race to build the most powerful quantum supercomputers.  California *public* education made this happen. Immigration made this happen.
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