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Ori Fox

@orifox.bsky.social
408 followers 140 following 108 posts

Astronomer | @STScI Scientist | HST | JWST | And now Deputy Project Scientist for Roman Space Telescope

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Reposted by Ori Fox
Sarah Kendrew @sarahkendrew.bsky.social · 01/09/2026
Wondering how Roman actually travels out to L2? Here is a cool animation which also includes JWST's orbit, from the NASA scientific visualization studio svs.gsfc.nasa.gov/5673#media_g...
svs.gsfc.nasa.gov
NASA Scientific Visualization Studio | Roman Telescope Launch and Orbit at L2
A collection of visualizations showing the path the Nancy Grace Roman Space Telescope will take to the second Sun-Earth Lagrange point (L2).
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Ori Fox @orifox.bsky.social · 31/08/2026
Ok, here’s my version of #RomanLaunch. Different angle taken from OSB II facility.
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Ori Fox @orifox.bsky.social · 30/08/2026
I can’t believe what a special day it was to celebrate this momentous occasion for @nancyromansci.bsky.social surrounded by my family and 5000 of my closest friends and colleagues. Here are just a few snapshots. #RomanLaunch
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Ori Fox @orifox.bsky.social · 04/08/2026
It's official! We at @stsci.edu are ready for #NASARoman.
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Reposted by Ori Fox
John F Wu @jwuphysics.bsky.social · 13/04/2026
Great googly moogly, 12:1 oversubscription! roman.ipac.caltech.edu/page/cycle-1
roman.ipac.caltech.edu
Cycle 1 Proposal Submission Statistics
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Ori Fox @orifox.bsky.social · 13/04/2026
Roman Cycle 1 stats announced first on @nancyromansci.bsky.social!
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Reposted by Ori Fox
Roman for Scientists @nancyromansci.bsky.social · 13/04/2026
Roman Cycle 1 CfP closed with a stellar response! 🚀 We received 374 proposals, including 309 for data analysis, theory & lab astrophysics. 65 proposals requested new observations totaling 14,386 hrs of telescope time, a ~12:1 over-subscription rate by hours. 🔗 Get all the stats: bit.ly/4sEoWO5
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Ori Fox @orifox.bsky.social · 24/02/2026
Happening *today* at 1pm! Data Products and Tools from the Project Infrastructure Teams (PITs) may be useful for you to utilize and build upon for your #NASARoman Cycle 1 proposals.
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Ori Fox @orifox.bsky.social · 17/02/2026
Happening Now!
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Reposted by Ori Fox
Roman for Scientists @nancyromansci.bsky.social · 20/01/2026
🚨 Community Forum Reminder🚨 Join Roman Community Forum #22 for an overview of the Roman Research Nexus—connecting the community to tools, data & collaboration! ⭐ Jan 21, 2026 • 4–5 PM ET 🔗 bit.ly/49GUtXW
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Ori Fox @orifox.bsky.social · 15/01/2026
This pathfinder shows what’s possible right now with archival JWST data. The early Universe is exploding—we’re finally watching. 💥 Paper link ⬇️ ui.adsabs.harvard.edu/abs/2026arXi... #JWST #NASARoman #Supernova #COSMOS n/n
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Ori Fox @orifox.bsky.social · 15/01/2026
And this is just the start. 📡 Roman will deliver cadence + area 🔭 JWST delivers depth + spectroscopy Together: a complete picture of explosive transients in the early Universe. 11/n
media.tenor.com
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Ori Fox @orifox.bsky.social · 15/01/2026
🚀 Imagine a dedicated JWST time-domain survey: • multiple epochs • wide area • planned cadence We’d measure SN rates, test stellar evolution, and push SN Ia cosmology to z > 3. 10/n
media.tenor.com
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Ori Fox @orifox.bsky.social · 15/01/2026
Previous JWST transient work (e.g. JADES) went ultra-deep but narrow. COSMOS-Web + PRIMER show the power of scale—5× the area, dozens of new SNe. Different strategies, complementary science. 9/n
media.tenor.com
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Ori Fox @orifox.bsky.social · 15/01/2026
📊 These results show that area beats depth for high-z SN discovery. Going fainter than ~28 mag helps less than going wider. This has huge implications for how we design future JWST & Roman surveys. 8/n
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Ori Fox @orifox.bsky.social · 15/01/2026
The sample already hints at something exciting: ➡️ Wide-area JWST surveys preferentially find 🟦 younger 🟦 bluer 🟦 more extreme explosions Exactly what we expect at high-z—but rarely see. 7/n
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Ori Fox @orifox.bsky.social · 15/01/2026
Even with just 1 epoch, combining: • host photometric redshifts • colors & magnitudes • SN models lets us probabilistically classify SNe and rank them for scarce JWST follow-up time. 6/n
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Ori Fox @orifox.bsky.social · 15/01/2026
Two highlights: 🔹 SN 2023aeab — a blue, Type IIP CCSN at z > 3 🔹 SN 2023aeax — a young, normal SN Ia at z > 2 Yes—a normal SNe Ia at cosmic noon and beyond. 5/n
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Ori Fox @orifox.bsky.social · 15/01/2026
💥 Result: 68 supernovae detected 📈 Host photo-z out to z ≲ 5 🧠 Single-epoch data, but enough info to classify & prioritize follow-up This is the largest wide-area JWST SN sample to date. 4/n
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Ori Fox @orifox.bsky.social · 15/01/2026
So we asked: what can we already do with existing JWST data? The trick: difference imaging between two massive JWST surveys ➡️ COSMOS-Web + PRIMER ➡️ ~1 year separation ➡️ 133 arcmin² overlap Neither was designed for transients—but together, they are 👀💀 3/n
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Ori Fox @orifox.bsky.social · 15/01/2026
High-z transients are notoriously hard: rest-frame optical shifts to IR and ground-based surveys hit sensitivity limits. JWST changes the game, but time-domain surveys are expensive and few have been TAC approved with the necessary sensitivity/wavelength coverage/cadence. 2/n
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Ori Fox @orifox.bsky.social · 15/01/2026
I'm excited to announce my newest paper out on arxiv: Expanding the High-z Supernova Frontier with JWST 🚀 We just used JWST to push transient astronomy to z ~ 5, discovering 68 supernovae...all without a dedicated time-domain survey. Here’s what we found 👇🧵 1/n
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Ori Fox @orifox.bsky.social · 12/01/2026
It's been an exciting 2025. I haven't done a great job promoting my work on social media, so over the next couple weeks, I'll make an attempt to summarize three of my biggest papers. Stay tuned...we'll see if I actually get this done.
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Ori Fox @orifox.bsky.social · 08/01/2026
Roman Time Domain Session at 10am! #AAS247
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Ori Fox @orifox.bsky.social · 06/01/2026
As I have the past 3 years, I am organizing the a “Foodie Dinner” on Wednesday night, January 7th at 7pm. Location will be sent to those who sign up. At the current time, I have 3 spots left. PM if interested. #AAS247
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Ori Fox @orifox.bsky.social · 04/01/2026
Check them out #AAS247
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Reposted by Ori Fox
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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Ori Fox @orifox.bsky.social · 12/11/2025
Got a look at @nasaromantelescope.bsky.social this morning. And it was looking right back.
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Ori Fox @orifox.bsky.social · 03/11/2025
🔭☄️
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Roman for Scientists @nancyromansci.bsky.social · 12/09/2025
🚀The Roman Coronagraph Community Participation Program (CPP) is meeting this week at IPAC in Pasadena, CA! The team is gearing up for commissioning, observations with the Coronagraph, and preparing for the launch of Roman next year. Exciting times ahead! ✨🪐 www.romancoronagraph.space
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Ori Fox @orifox.bsky.social · 19/08/2025
I don't post a lot, but I am particularly proud of this paper. It's the first observational sample of binary companions to stripped envelope supernovae. And places constraints on the binary evolution physics. It only took me 10 years to build with HST! arxiv.org/abs/2508.12677
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Ori Fox @orifox.bsky.social · 01/07/2025
In these turbulent times for science, I can't resist putting out my "Case For Space". It's sometimes a little scary to speak up, but here I go. I hope this doesn't go viral. 😉
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Reposted by Ori Fox
Roman for Scientists @nancyromansci.bsky.social · 06/06/2025
🚨Get Ready for #AAS246!🚨 Follow us daily for your dose of #NASARoman at AAS: talks, posters, booths, sessions (and stickers) —we’ve got it all. 🔭📡📸
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Ori Fox @orifox.bsky.social · 01/06/2025
thehill.com/homenews/adm...
thehill.com
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Ori Fox @orifox.bsky.social · 30/05/2025
This just came out
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Ori Fox @orifox.bsky.social · 30/05/2025
www.nasa.gov/wp-content/u...
nasa.gov
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Roman for Scientists @nancyromansci.bsky.social · 23/05/2025
🚀Want to get involved with #NASARoman before it launches? You can tune-in, interact, or actively contribute. It's a great way to gear up for the Cycle 1 Call for Proposals coming in late 2025! 👩‍🚀🛰️ Find out more: bit.ly/4kigJM9 #ExpandOurView
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Thomas Carpentier @thocarp.bsky.social · 22/05/2025
Let's get back to Euclid's Early Release Observation (ERO)! 🔭 This is a new version of mine of the Messier 78 observation by Euclid. I wanted to improve my first try from months ago, so here is it! M78 is a nebula located some 1,350 light years away. HD: flic.kr/p/2r6juDX
A gas structure seen in infrared. The gas appears red and orange, spanning from right to left. At the centre some young stars carved a "cave" inside the gas cloud, as their violent stellar winds pushed the gas around it. On the left some jets can be spotted, created by stars being born. Hundreds of stars and even galaxies can be spotted in the background, everywhere in the image.
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Roman for Scientists @nancyromansci.bsky.social · 21/05/2025
Join us for "Cosmic Cartography with Roman", a symposium on how our large survey maps will be used to explore the intersection of dark energy and dark matter, including galaxy formation/evolution. @stsci.edu - July 14-18! Speaker schedule now available. Register by June 9. #CCR25 bit.ly/4jYe3TH
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Ori Fox @orifox.bsky.social · 20/05/2025
Representing @nancyromansci.bsky.social at the Congressional @planetarysociety.bsky.social Caucus event with Bill Nye and @stsci.edu! www.planetary.org/advocacy/the...
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Ori Fox @orifox.bsky.social · 16/05/2025
If you're looking to get involved in #NASARoman, *now is the time.* Cycle 1 Call for Proposals will be in Fall 2025. This workshop at #AAS246 is one of the best opportunities to get involved and early access to the cloud infrastructure. #LongLiveRoman
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Roman for Scientists @nancyromansci.bsky.social · 14/05/2025
Next #NASARoman Virtual Lecture on May 15! "Chromatic Effects on the PSF and Shear Measurement for the Roman Space Telescope" - Federico Berlfein (Carnegie Mellon) For more information, visit roman.ipac.caltech.edu/Lectures.html #ExpandOurView
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Roman for Scientists @nancyromansci.bsky.social · 08/05/2025
🚀We are ready for launch...of the official social media account for doing science with #NASARoman! This account will keep researchers informed about opportunities for preparing for and participating in Roman science. Follow us to stay involved. #ExpandOurView
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Huei Sears, PhD 🌟 @starlights.bsky.social · 07/05/2025
Excited to announce the 'Rutgers Summer Transient Soiree' this July 16-18! To offset the uncertain funding landscape, we are offering a hybrid option + requiring NO registration fee. Non-faculty are especially encouraged to apply! Please apply by May 31! More in the replies! 🧪🔭☄️ #highenergyastro
Poster advertising the 'Rutgers Summer Transient Soiree' this July 16-18 at Rutgers University.  There is a QR code on the bottom left, and there is also information about the conference + the invited lecturers.
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Ashley Balzer Vigil @ashleybvigil.bsky.social · 25/04/2025
Just 3/4 of it! I’m hoping the other fourth will include an ultra-deep field 🤩
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Thomas Carpentier @thocarp.bsky.social · 25/04/2025
You probably know the Pillars of Creation in Messier 16, let me introduce you to other pillars in our own galactic center! 🔭 Named the Sickle, these are pillars seen by the JWST in mid-infrared in the center of the Milky Way. The stars being born here will be monsters! HD: flic.kr/p/2qZFSpD
Dust and gas orange and blue structures in mid-infrared, giving the image a painting-like appearance. Pillars emerge from the structure, where new stars are born. Background blue and white stars can be spotted as well.Another part of the same structure. Other pillars can be seen, in the same orange and blue colours.
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Ori Fox @orifox.bsky.social · 25/04/2025
The 5 year mission plan for @nasaromantelescope.bsky.social summarized in an easy to read press release with some snazzy graphics. Which part are you most excited about? #NASARoman #LongLiveRoman www.nasa.gov/missions/rom...
nasa.gov
NASA’s Roman Mission Shares Detailed Plans to Scour Skies - NASA
NASA’s Nancy Grace Roman Space Telescope team shared Thursday the designs for the three core surveys the mission will conduct after launch. These observation
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Daniel Pomarède @pomarede.bsky.social · 24/04/2025
NASA’s Roman Mission Shares Detailed Plans to Scour Skies www.nasa.gov/missions/rom... 🧪🔭 #Cosmology
nasa.gov
NASA’s Roman Mission Shares Detailed Plans to Scour Skies - NASA
NASA’s Nancy Grace Roman Space Telescope team shared Thursday the designs for the three core surveys the mission will conduct after launch. These observation
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saurabh w jha @sublunar.bsky.social · 24/04/2025
The Nancy Grace Roman Space Telescope observing program is going to be amazing. Can't wait. #NASARoman @nasaromantelescope.bsky.social www.nasa.gov/missions/rom...
nasa.gov
NASA’s Roman Mission Shares Detailed Plans to Scour Skies - NASA
NASA’s Nancy Grace Roman Space Telescope team shared Thursday the designs for the three core surveys the mission will conduct after launch. These observation
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Ori Fox @orifox.bsky.social · 24/04/2025
Very proud to see @NASARoman ROTAC report on initial 5-year mission plan come out today...and have my name on it! This is the FUTURE of astronomy. #Roman #LongLiveRoman t.co/Co9qgBrKr6
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