Dr. Alison Duck
@astroalison.bsky.social
Exoplaneteer - OSU Astronomy PhD
Reposted by Dr. Alison Duck
In good news: "NASA Completes Nancy Grace Roman Space Telescope Construction" www.jpl.nasa.gov/news/nasa-co...
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.
www.jpl.nasa.gov
December 5, 2025 at 5:12 PM
In good news: "NASA Completes Nancy Grace Roman Space Telescope Construction" www.jpl.nasa.gov/news/nasa-co...
Reposted by Dr. Alison Duck
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: https://go.nasa.gov/48EqnE8 🔭 🧪
After final testing, Roman will move to the launch site at the Kennedy Space Center for launch preparations in summer 2026: https://go.nasa.gov/48EqnE8 🔭 🧪
December 4, 2025 at 6:14 PM
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: https://go.nasa.gov/48EqnE8 🔭 🧪
After final testing, Roman will move to the launch site at the Kennedy Space Center for launch preparations in summer 2026: https://go.nasa.gov/48EqnE8 🔭 🧪
Reposted by Dr. Alison Duck
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...
By @jennaahart.bsky.social
www.nature.com/articles/d41...
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
www.nature.com
December 3, 2025 at 5:16 PM
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...
By @jennaahart.bsky.social
www.nature.com/articles/d41...
Reposted by Dr. Alison Duck
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 🌟
December 1, 2025 at 11:55 PM
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 🌟
Reposted by Dr. Alison Duck
[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...
🔭🐡🧪🎨
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...
🔭🐡🧪🎨
November 24, 2025 at 1:12 AM
[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...
🔭🐡🧪🎨
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...
🔭🐡🧪🎨
Reposted by Dr. Alison Duck
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
Subscribe to tinyurl.com/RVLSsubscr for call-in details!
📅 Thurs Nov 20 (Today!)
🕐 4-4:30 PM EDT
🔗 bit.ly/4m7MkjY
November 20, 2025 at 3:01 PM
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
Subscribe to tinyurl.com/RVLSsubscr for call-in details!
📅 Thurs Nov 20 (Today!)
🕐 4-4:30 PM EDT
🔗 bit.ly/4m7MkjY
Reposted by Dr. Alison Duck
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! 🤯
Very excited to share the NASA/ESA/STScI press release of our team's work on Apep! It's a terrific writeup, complete with a brand new beautiful visualisation of the nebula geometry.
1/? ⚛️🔭🧪
science.nasa.gov/missions/web...
1/? ⚛️🔭🧪
science.nasa.gov/missions/web...
Webb First to Show 4 Dust Shells 'Spiraling' Apep, Limits Long Orbit - NASA Science
NASA’s James Webb Space Telescope has delivered a first of its kind: a crisp mid-infrared image of a system of four serpentine spirals of dust, one expanding
science.nasa.gov
November 20, 2025 at 12:19 AM
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! 🤯
Reposted by Dr. Alison Duck
First time in a while where I’ve had the “wait that’s an IMAGE. That’s the DATA.” double take.
Very excited to share the NASA/ESA/STScI press release of our team's work on Apep! It's a terrific writeup, complete with a brand new beautiful visualisation of the nebula geometry.
1/? ⚛️🔭🧪
science.nasa.gov/missions/web...
1/? ⚛️🔭🧪
science.nasa.gov/missions/web...
Webb First to Show 4 Dust Shells 'Spiraling' Apep, Limits Long Orbit - NASA Science
NASA’s James Webb Space Telescope has delivered a first of its kind: a crisp mid-infrared image of a system of four serpentine spirals of dust, one expanding
science.nasa.gov
November 20, 2025 at 12:14 AM
First time in a while where I’ve had the “wait that’s an IMAGE. That’s the DATA.” double take.
Reposted by Dr. Alison Duck
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.
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.
November 10, 2025 at 1:49 AM
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.
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.
Reposted by Dr. Alison Duck
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!)
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!)
November 8, 2025 at 12:25 AM
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!)
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!)
Reposted by Dr. Alison Duck
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. 🎢 ⚛️ 🧪 👩🔬
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. 🎢 ⚛️ 🧪 👩🔬
November 3, 2025 at 5:01 PM
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. 🎢 ⚛️ 🧪 👩🔬
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. 🎢 ⚛️ 🧪 👩🔬
Reposted by Dr. Alison Duck
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/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 247: Workshops | American Astronomical Society
aas.org
November 4, 2025 at 4:36 PM
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/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)
Reposted by Dr. Alison Duck
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: https://www.uahirise.org/anaglyph/ESP_089275_2270_ESP_088932_2270_RED
NASA/JPL-Caltech/University of Arizona
#Mars #NASA #science
Today’s HiPOD doubles as our 3D post because it was just too good to pass up! (See the HiPOD for details.)
Full image: https://www.uahirise.org/anaglyph/ESP_089275_2270_ESP_088932_2270_RED
NASA/JPL-Caltech/University of Arizona
#Mars #NASA #science
October 28, 2025 at 5:00 PM
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: https://www.uahirise.org/anaglyph/ESP_089275_2270_ESP_088932_2270_RED
NASA/JPL-Caltech/University of Arizona
#Mars #NASA #science
Today’s HiPOD doubles as our 3D post because it was just too good to pass up! (See the HiPOD for details.)
Full image: https://www.uahirise.org/anaglyph/ESP_089275_2270_ESP_088932_2270_RED
NASA/JPL-Caltech/University of Arizona
#Mars #NASA #science
Reposted by Dr. Alison Duck
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. 😅
🏷️: 📸🌿🐡🔭
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. 😅
🏷️: 📸🌿🐡🔭
October 22, 2025 at 9:41 PM
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. 😅
🏷️: 📸🌿🐡🔭
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. 😅
🏷️: 📸🌿🐡🔭
Reposted by Dr. Alison Duck
Growing list of astronomy PhD programs that are pausing admissions this year 🔭
aas.org/posts/news/2...
aas.org/posts/news/2...
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 ...
aas.org
October 20, 2025 at 1:26 AM
Growing list of astronomy PhD programs that are pausing admissions this year 🔭
aas.org/posts/news/2...
aas.org/posts/news/2...
Reposted by Dr. Alison Duck
For this money, your tax dollars could have paid for a second TESS mission to find planets, but instead:
I know something about aircraft pricing, and when you "need" to get updated avionics, safety equipment etc.
This is grotesquely wasteful, unnecessary, and self-aggrandizing.
No Kings. Also, no cosplay Marie Antoinettes.
www.nytimes.com/2025/10/18/u...
This is grotesquely wasteful, unnecessary, and self-aggrandizing.
No Kings. Also, no cosplay Marie Antoinettes.
www.nytimes.com/2025/10/18/u...
Coast Guard Buys Two Private Jets for Noem, Costing $172 Million
www.nytimes.com
October 18, 2025 at 6:53 PM
For this money, your tax dollars could have paid for a second TESS mission to find planets, but instead:
Reposted by Dr. Alison Duck
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
October 16, 2025 at 8:53 PM
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
Reposted by Dr. Alison Duck
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! 🪐🪐
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! 🪐🪐
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...
arxiv.org
October 14, 2025 at 7:13 PM
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! 🪐🪐
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! 🪐🪐
Reposted by Dr. Alison Duck
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." ⚛️
October 7, 2025 at 5:53 PM
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." ⚛️
Reposted by Dr. Alison Duck
Kylee Carden reports for @astrobites.bsky.social on how we might someday detect moons around planets outside our solar system by precisely tracking the positions of a star and a planet. aasnova.org/2025/10/06/f... 🔭
Finding Avatar’s Pandora: Exomoons with Astrometry
Astrobites reports on how we might someday detect moons around planets outside our solar system by precisely tracking the positions of a star and a planet.
aasnova.org
October 6, 2025 at 4:42 PM
Kylee Carden reports for @astrobites.bsky.social on how we might someday detect moons around planets outside our solar system by precisely tracking the positions of a star and a planet. aasnova.org/2025/10/06/f... 🔭
Reposted by Dr. Alison Duck
This week (!) is the 30th anniversary of the announcement of 51 Pegasi b, the first exoplanet found orbiting a star like our Sun - since then, we've found over 6,000!
To celebrate, @alexwitze.bsky.social and @nature.com collected some astronomers' favourite planets:
www.nature.com/articles/d41...
To celebrate, @alexwitze.bsky.social and @nature.com collected some astronomers' favourite planets:
www.nature.com/articles/d41...
These alien planets are astronomers’ favourites: here’s why
Space scientists look back on 30 years of exoplanet discoveries — from rows of massive ‘super-Earths‘ to worlds with perfectly synchronized orbits.
www.nature.com
October 2, 2025 at 8:55 PM
This week (!) is the 30th anniversary of the announcement of 51 Pegasi b, the first exoplanet found orbiting a star like our Sun - since then, we've found over 6,000!
To celebrate, @alexwitze.bsky.social and @nature.com collected some astronomers' favourite planets:
www.nature.com/articles/d41...
To celebrate, @alexwitze.bsky.social and @nature.com collected some astronomers' favourite planets:
www.nature.com/articles/d41...
Reposted by Dr. Alison Duck
Outstanding new paper from Evert Nasedkin on the variable, isolated exoplanet analog, T dwarf, SIMP-0136! Time resolved atmospheric retrievals find temperature driving variability and potential auroral signatures (stratospheric temperature inversion)!
🔭 It's paper day! Today I'm sharing the latest in a series of papers looking at the weather on other worlds, in this case bringing you the weather report from a nearby T-dwarf, SIMP-0136. 🪐
🧵 to follow...
🧵 to follow...
September 26, 2025 at 12:36 PM
Outstanding new paper from Evert Nasedkin on the variable, isolated exoplanet analog, T dwarf, SIMP-0136! Time resolved atmospheric retrievals find temperature driving variability and potential auroral signatures (stratospheric temperature inversion)!
Reposted by Dr. Alison Duck
#NASAWebb has found the first direct evidence of potential moon formation around a giant exoplanet. The discovery is shedding light on how such systems evolve and why moons could be potentially habitable worlds: https://bit.ly/46xGodN 🔭 🧪
September 29, 2025 at 2:03 PM
#NASAWebb has found the first direct evidence of potential moon formation around a giant exoplanet. The discovery is shedding light on how such systems evolve and why moons could be potentially habitable worlds: https://bit.ly/46xGodN 🔭 🧪
Reposted by Dr. Alison Duck
STScI's Alyssa Pagan says that there is a methodology for dealing with the wider electromagnetic spectrum: “In terms of assigning color, we generally do some standard chromatic ordering because it has the most scientific value and meaning in it, and usually also gives you aesthetic images.” 🔭 🧪
Astro-color alchemists
Astronomers have a method for colorizing grayscale images from various space- and groundbased observatories.
spie.org
September 26, 2025 at 5:59 PM
STScI's Alyssa Pagan says that there is a methodology for dealing with the wider electromagnetic spectrum: “In terms of assigning color, we generally do some standard chromatic ordering because it has the most scientific value and meaning in it, and usually also gives you aesthetic images.” 🔭 🧪