Dr. Sammy Hasler
@sammyhasler.bsky.social
interested in directly imaging exoplanets and studying solar system analogs • postdoc at MIT • i love hiking, cooking, and my cats!
snhasler.github.io
snhasler.github.io
Reposted by Dr. Sammy Hasler
Another job was just posted, at the senior software engineer level at @stsci.edu: 🔭 #astrocode
recruiting2.ultipro.com/SPA1004AURA/...
recruiting2.ultipro.com/SPA1004AURA/...
February 3, 2026 at 9:11 PM
Another job was just posted, at the senior software engineer level at @stsci.edu: 🔭 #astrocode
recruiting2.ultipro.com/SPA1004AURA/...
recruiting2.ultipro.com/SPA1004AURA/...
Reposted by Dr. Sammy Hasler
Entry level software engineer position at @stsci.edu, application deadline Feb 28: 🧪🔭 #astrocode
recruiting2.ultipro.com/SPA1004AURA/...
recruiting2.ultipro.com/SPA1004AURA/...
recruiting2.ultipro.com
February 3, 2026 at 5:30 PM
Entry level software engineer position at @stsci.edu, application deadline Feb 28: 🧪🔭 #astrocode
recruiting2.ultipro.com/SPA1004AURA/...
recruiting2.ultipro.com/SPA1004AURA/...
Reposted by Dr. Sammy Hasler
I know it's called the "Habitable Worlds Observatory", but what about uninhabitable worlds? Check out the below paper to learn what HWO can teach us about our sister planet and its analogs that are scattered among the stars!
arxiv.org/abs/2602.02728
arxiv.org/abs/2602.02728
Imaging Venus-like Worlds: Spectral, Polarimetric, and UV Diagnostics for the Habitable Worlds Observatory
Understanding planetary habitability requires a comparative approach that explores the divergent evolutionary outcomes of Earth and Venus. The Habitable Worlds Observatory (HWO) will be uniquely posit...
arxiv.org
February 4, 2026 at 3:56 AM
I know it's called the "Habitable Worlds Observatory", but what about uninhabitable worlds? Check out the below paper to learn what HWO can teach us about our sister planet and its analogs that are scattered among the stars!
arxiv.org/abs/2602.02728
arxiv.org/abs/2602.02728
Reposted by Dr. Sammy Hasler
More Astrophysics for More People ✨
Join us for a virtual #AAS247 session and a first look at The Schmidt Observatory System—a new network of ground and space-based initiatives designed to break the traditional limits of discovery.
📆 Jan 7 | 3-5:30pm MT / 5-7:30pm ET
Register here: buff.ly/kbbNFuB
Join us for a virtual #AAS247 session and a first look at The Schmidt Observatory System—a new network of ground and space-based initiatives designed to break the traditional limits of discovery.
📆 Jan 7 | 3-5:30pm MT / 5-7:30pm ET
Register here: buff.ly/kbbNFuB
January 7, 2026 at 5:07 PM
Reposted by Dr. Sammy Hasler
Check out the @caltechipac.bsky.social booth at #AAS247!
Also, be sure to ask about our student opportunities! (www.ipac.caltech.edu/page/students) 🔭
Also, be sure to ask about our student opportunities! (www.ipac.caltech.edu/page/students) 🔭
January 6, 2026 at 4:48 PM
Check out the @caltechipac.bsky.social booth at #AAS247!
Also, be sure to ask about our student opportunities! (www.ipac.caltech.edu/page/students) 🔭
Also, be sure to ask about our student opportunities! (www.ipac.caltech.edu/page/students) 🔭
Reposted by Dr. Sammy Hasler
In a historical milestone, Hubble has witnessed the catastrophic collision of asteroids in the nearby Fomalhaut planetary system 🪨💥
Observations also revealed that an object previously suspected to be a candidate planet was, in fact, a dust cloud.
🔭 🧪
Observations also revealed that an object previously suspected to be a candidate planet was, in fact, a dust cloud.
🔭 🧪
December 18, 2025 at 7:15 PM
In a historical milestone, Hubble has witnessed the catastrophic collision of asteroids in the nearby Fomalhaut planetary system 🪨💥
Observations also revealed that an object previously suspected to be a candidate planet was, in fact, a dust cloud.
🔭 🧪
Observations also revealed that an object previously suspected to be a candidate planet was, in fact, a dust cloud.
🔭 🧪
Reposted by Dr. Sammy Hasler
A holiday gift for #exoplanets Chrome users: how to set up the coolest exoplanet shortcut ever.
Click the three-dot menu in the upper right -> Settings -> Search Engine -> Manage search engines and site search.
Scroll to site search and click Add. Fill like this and save:
(1/2)
Click the three-dot menu in the upper right -> Settings -> Search Engine -> Manage search engines and site search.
Scroll to site search and click Add. Fill like this and save:
(1/2)
November 26, 2025 at 9:28 PM
A holiday gift for #exoplanets Chrome users: how to set up the coolest exoplanet shortcut ever.
Click the three-dot menu in the upper right -> Settings -> Search Engine -> Manage search engines and site search.
Scroll to site search and click Add. Fill like this and save:
(1/2)
Click the three-dot menu in the upper right -> Settings -> Search Engine -> Manage search engines and site search.
Scroll to site search and click Add. Fill like this and save:
(1/2)
Reposted by Dr. Sammy Hasler
As an astronomer I get asked a lot what kind of telescope 🔭 so-and-so should get for themselves or their [spouse/kid/etc]. I’m clueless. I use BIG telescopes and have never purchased one in my life. But @philplait.bsky.social knows! Thx, Phil! badastronomy.beehiiv.com/p/ban-275-te...
BAN #275: Telescope buying advice, Book: It’s Alive, Dial-A-Moon 2021
30 November 2020 Issue #271
badastronomy.beehiiv.com
December 7, 2025 at 10:09 PM
As an astronomer I get asked a lot what kind of telescope 🔭 so-and-so should get for themselves or their [spouse/kid/etc]. I’m clueless. I use BIG telescopes and have never purchased one in my life. But @philplait.bsky.social knows! Thx, Phil! badastronomy.beehiiv.com/p/ban-275-te...
Reposted by Dr. Sammy Hasler
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. Sammy Hasler
This is great news that Roman Space Telescope 🚀🔭 is functionally completed! Still some testing, and then Roman will move the Kennedy to be mated with the launch vehicle. Roman is a wide-field Hubble - exciting!
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 8:21 PM
This is great news that Roman Space Telescope 🚀🔭 is functionally completed! Still some testing, and then Roman will move the Kennedy to be mated with the launch vehicle. Roman is a wide-field Hubble - exciting!
Reposted by Dr. Sammy Hasler
Come do a PhD at the @qubelfastofficial.bsky.social
Astrophysics Research Centre (ARC). The avaialble PhD projects starting in the 2026/2027 school year are now up. Application deadline is January 16th . I have project on doing cool things with @vrubinobs.bsky.social Solar System discoveries 🧪🔭.
Astrophysics Research Centre (ARC). The avaialble PhD projects starting in the 2026/2027 school year are now up. Application deadline is January 16th . I have project on doing cool things with @vrubinobs.bsky.social Solar System discoveries 🧪🔭.
PHD Studentships | Astrophysics Research Centre | Queen's University Belfast
www.qub.ac.uk
November 20, 2025 at 9:07 PM
Come do a PhD at the @qubelfastofficial.bsky.social
Astrophysics Research Centre (ARC). The avaialble PhD projects starting in the 2026/2027 school year are now up. Application deadline is January 16th . I have project on doing cool things with @vrubinobs.bsky.social Solar System discoveries 🧪🔭.
Astrophysics Research Centre (ARC). The avaialble PhD projects starting in the 2026/2027 school year are now up. Application deadline is January 16th . I have project on doing cool things with @vrubinobs.bsky.social Solar System discoveries 🧪🔭.
It’s Halloween week and I haven’t seen any talk about our favorite spooky #exoplanets yet this year!
Crowd-sourcing ideas for our exoplanet journal club this week — what’s your nomination for spookiest exoplanet? 👻
Crowd-sourcing ideas for our exoplanet journal club this week — what’s your nomination for spookiest exoplanet? 👻
October 28, 2025 at 2:47 PM
It’s Halloween week and I haven’t seen any talk about our favorite spooky #exoplanets yet this year!
Crowd-sourcing ideas for our exoplanet journal club this week — what’s your nomination for spookiest exoplanet? 👻
Crowd-sourcing ideas for our exoplanet journal club this week — what’s your nomination for spookiest exoplanet? 👻
Reposted by Dr. Sammy Hasler
For anyone applying to grad school in the US this fall, the @aas.org has made a working group to monitor which programs have faced cuts - this spreadsheet contains all the info: 🔭☄️
US Astronomy Graduate Admissions, AY 2025-2026
docs.google.com
October 23, 2025 at 11:48 AM
For anyone applying to grad school in the US this fall, the @aas.org has made a working group to monitor which programs have faced cuts - this spreadsheet contains all the info: 🔭☄️
Reposted by Dr. Sammy Hasler
Seeking PhD candidates that want to do a thesis on exoplanet atmosphere retrieval + machine learning inference. Please apply by 31 October to Dr. Max Dax's and my shared project here: is.mpg.de/news/new-max... . Abstract for the thesis project is attached to this thread below!
New Max Planck Artificial Intelligence Network Starts Call for Applications for its Ph.D. Program
The Max Planck Artificial Intelligence Network is a Ph.D. Program that provides doctoral researchers with fully funded Ph.D. fellowships and a pool of outstanding faculty comprising directors and inde...
is.mpg.de
October 17, 2025 at 12:46 PM
Seeking PhD candidates that want to do a thesis on exoplanet atmosphere retrieval + machine learning inference. Please apply by 31 October to Dr. Max Dax's and my shared project here: is.mpg.de/news/new-max... . Abstract for the thesis project is attached to this thread below!
Reposted by Dr. Sammy Hasler
A lot of comments on Mars rovers or Moon landings, but it's important to remember that the planet NASA studies most is Earth. This is less about cutting flashy things like moonwalks and more about keeping communities in the dark on climate, weather, agriculture, pollution, natural hazards, and more.
NASA's Jet Propulsion Laboratory to lay off about 550 workers reut.rs/4302N2L
NASA's Jet Propulsion Laboratory to lay off about 550 workers
NASA's Jet Propulsion Laboratory said on Monday it will cut nearly 550 jobs as part of a restructuring, not related to the current U.S. government shutdown.
reut.rs
October 13, 2025 at 10:43 PM
A lot of comments on Mars rovers or Moon landings, but it's important to remember that the planet NASA studies most is Earth. This is less about cutting flashy things like moonwalks and more about keeping communities in the dark on climate, weather, agriculture, pollution, natural hazards, and more.
Reposted by Dr. Sammy Hasler
It feels useless to point out but if we stop pointing it out that's definitely worse:
SURELY IT'S ILLEGAL FOR TRUMP TO ORGANIZE PRIVATE FINANCING FOR THE US MILITARY.
www.theguardian.com/us-news/live...
SURELY IT'S ILLEGAL FOR TRUMP TO ORGANIZE PRIVATE FINANCING FOR THE US MILITARY.
www.theguardian.com/us-news/live...
October 14, 2025 at 7:21 PM
It feels useless to point out but if we stop pointing it out that's definitely worse:
SURELY IT'S ILLEGAL FOR TRUMP TO ORGANIZE PRIVATE FINANCING FOR THE US MILITARY.
www.theguardian.com/us-news/live...
SURELY IT'S ILLEGAL FOR TRUMP TO ORGANIZE PRIVATE FINANCING FOR THE US MILITARY.
www.theguardian.com/us-news/live...
Reposted by Dr. Sammy Hasler
So many spectacular, kind, brave people who I've worked with for years being let go from JPL today. We will all be poorer for their absence from the forefront of human knowledge.
October 14, 2025 at 8:09 PM
So many spectacular, kind, brave people who I've worked with for years being let go from JPL today. We will all be poorer for their absence from the forefront of human knowledge.
Reposted by Dr. Sammy Hasler
An NSF Graduate Research Fellowship helped launch my career - the next generation of scientists deserves the same opportunity, just as Americans deserve the benefits of a well-supported scientific pipeline. But this year's solicitation is MIA.
Please take a minute to speak up for the program👇
Please take a minute to speak up for the program👇
Please share with anyone who cares about NSF support for graduate students and take 30 seconds to sign and leave a comment.
The deadline for the 2025 Graduate Research Fellowship Program is about one month away and literally no one can apply. #NSFGRFP
jasonjwilliamsny.github.io/grfp2025/
The deadline for the 2025 Graduate Research Fellowship Program is about one month away and literally no one can apply. #NSFGRFP
jasonjwilliamsny.github.io/grfp2025/
An Open Letter to U.S. STEM Leadership on the NSF Graduate Research Fellowship Program
An Open Letter to U.S. STEM Leadership on the NSF Graduate Research Fellowship Program
jasonjwilliamsny.github.io
September 26, 2025 at 2:31 AM
An NSF Graduate Research Fellowship helped launch my career - the next generation of scientists deserves the same opportunity, just as Americans deserve the benefits of a well-supported scientific pipeline. But this year's solicitation is MIA.
Please take a minute to speak up for the program👇
Please take a minute to speak up for the program👇
Reposted by Dr. Sammy Hasler
For those who may not know ... the magnetic field of Uranus is tilted ~60 deg relative to its spin axis.
So it looks like the aurorae are occurring near the equator, because, in fact, they are! Within ~ 30deg of the equator.
So it looks like the aurorae are occurring near the equator, because, in fact, they are! Within ~ 30deg of the equator.
#PPOD: This image of Uranus’ aurorae was taken by the NASA/ESA Hubble Space Telescope on 10 October 2022. These observations were made by the Space Telescope Imaging Spectrograph (STIS) and include both visible and ultraviolet data. 🧪 🔭
Credit: ESA/Hubble, NASA, L. Lamy, L. Sromovsky
Credit: ESA/Hubble, NASA, L. Lamy, L. Sromovsky
September 25, 2025 at 4:15 PM
For those who may not know ... the magnetic field of Uranus is tilted ~60 deg relative to its spin axis.
So it looks like the aurorae are occurring near the equator, because, in fact, they are! Within ~ 30deg of the equator.
So it looks like the aurorae are occurring near the equator, because, in fact, they are! Within ~ 30deg of the equator.
Reposted by Dr. Sammy Hasler
Autism is not a "disease" or "epidemic".
Autism has a strong genetic component.
There is no evidence that vaccinees or Tylenol cause autism.
Access to autism diagnostics have dramatically increased as reported rates increased.
Neither Trump nor RFK Jr are scientists or medical professionals.
Autism has a strong genetic component.
There is no evidence that vaccinees or Tylenol cause autism.
Access to autism diagnostics have dramatically increased as reported rates increased.
Neither Trump nor RFK Jr are scientists or medical professionals.
September 22, 2025 at 10:10 PM
Autism is not a "disease" or "epidemic".
Autism has a strong genetic component.
There is no evidence that vaccinees or Tylenol cause autism.
Access to autism diagnostics have dramatically increased as reported rates increased.
Neither Trump nor RFK Jr are scientists or medical professionals.
Autism has a strong genetic component.
There is no evidence that vaccinees or Tylenol cause autism.
Access to autism diagnostics have dramatically increased as reported rates increased.
Neither Trump nor RFK Jr are scientists or medical professionals.
Reposted by Dr. Sammy Hasler
My first NASA position, as a contractor in the Kepler Science Office, was on a H-1b visa. NASA ended up giving me a medal and now I’m the Chief Scientist of NASA Exoplanet Science Institute and an American citizen to boot. Seems like a net win for the US, no? But now this:
Trump announces $1m ‘golden visa’ and raises fees for H-1B visas to $100,000 – US politics live
US president signs executive orders making it more expensive to get special skills visa while expediting process for those who can pay large sums
www.theguardian.com
September 19, 2025 at 10:34 PM
My first NASA position, as a contractor in the Kepler Science Office, was on a H-1b visa. NASA ended up giving me a medal and now I’m the Chief Scientist of NASA Exoplanet Science Institute and an American citizen to boot. Seems like a net win for the US, no? But now this:
Reposted by Dr. Sammy Hasler
🪐🔭 JWST is letting us learn about disks around PLANETARY-MASS OBJECTS!!!
Today is a special paper day for me: for the first time we can do chemistry in a circumplanetary disk around a planetary-mass companion! Gabriele Cugno and I used JWST to tease out the signal of CT Cha b, finding a rich carbon chemistry (7 molecules + 1 isotopolog detected)! arxiv.org/abs/2509.15209
September 19, 2025 at 3:57 PM
🪐🔭 JWST is letting us learn about disks around PLANETARY-MASS OBJECTS!!!
Reposted by Dr. Sammy Hasler
September 18, 2025 at 8:42 PM
Reposted by Dr. Sammy Hasler
You are cordially invited to our next AoT Boston event at Aeronaut Brewing on Thursday, September 4!!! We're bringing you some exciting talks about the Rubin Observatory (@vrubinobs.bsky.social), which will capture the ultimate time-lapse movie of the universe in the next 10 years 🔭💫
August 31, 2025 at 11:29 PM
You are cordially invited to our next AoT Boston event at Aeronaut Brewing on Thursday, September 4!!! We're bringing you some exciting talks about the Rubin Observatory (@vrubinobs.bsky.social), which will capture the ultimate time-lapse movie of the universe in the next 10 years 🔭💫
Reposted by Dr. Sammy Hasler
As a resident of the Boston metro, I find it so interesting that narratives about the whiteness of Boston persist as the dominant national story even though it's a majority minority metro and the actual city is led by a Chinese-American woman.
Also, she's more presidential than Gavin Belson
Also, she's more presidential than Gavin Belson
Boston Mayor Michelle Wu:
“Silence in the face of oppression is not an option. The U.S. Attorney General asked for a response by today. So here it is…Stop attacking our cities to hide your administration's failures.”
“Silence in the face of oppression is not an option. The U.S. Attorney General asked for a response by today. So here it is…Stop attacking our cities to hide your administration's failures.”
August 19, 2025 at 5:58 PM
As a resident of the Boston metro, I find it so interesting that narratives about the whiteness of Boston persist as the dominant national story even though it's a majority minority metro and the actual city is led by a Chinese-American woman.
Also, she's more presidential than Gavin Belson
Also, she's more presidential than Gavin Belson