John Debes
@johndebes.bsky.social
ESA/AURA astronomer at STScI. Opinions my own. I study exoplanets and disks around stars.
Pinned
John Debes
@johndebes.bsky.social
· Jan 16
I cracked 1000 followers on Blusky recently and excited to talk to folks about astronomy, exoplanets, being kind to your community, and of course furbabies
Reposted by John Debes
The nearly complete Nancy Grace Roman Space Telescope has made another set of critical strides toward launch. This fall, the outer portion passed two tests—a shake test and an intense sound blast—to ensure its successful launch: go.nasa.gov/4ooRM2L #NASARoman 🔭 🧪
November 26, 2025 at 4:13 PM
The nearly complete Nancy Grace Roman Space Telescope has made another set of critical strides toward launch. This fall, the outer portion passed two tests—a shake test and an intense sound blast—to ensure its successful launch: go.nasa.gov/4ooRM2L #NASARoman 🔭 🧪
Reposted by John Debes
INTERN ALERT! 🚨 Join the NASA team and gain valuable on-the-job experience, build your resume, and strengthen your career readiness.
2026 Internship Application Deadlines:
Summer 2026: February 27, 2026, 11:59 p.m. ET
Fall 2026: May 22, 2026, 11:59 p.m. ET
2026 Internship Application Deadlines:
Summer 2026: February 27, 2026, 11:59 p.m. ET
Fall 2026: May 22, 2026, 11:59 p.m. ET
NASA Internship Programs - NASA
NASA’s internship programs provide training, mentoring, and career development opportunities while working with the best science, engineering, financial, information technology and business minds in t...
www.nasa.gov
November 26, 2025 at 4:53 PM
INTERN ALERT! 🚨 Join the NASA team and gain valuable on-the-job experience, build your resume, and strengthen your career readiness.
2026 Internship Application Deadlines:
Summer 2026: February 27, 2026, 11:59 p.m. ET
Fall 2026: May 22, 2026, 11:59 p.m. ET
2026 Internship Application Deadlines:
Summer 2026: February 27, 2026, 11:59 p.m. ET
Fall 2026: May 22, 2026, 11:59 p.m. ET
Reposted by John Debes
🔴 LIVE NOW: The first session of our Ministerial Council #CM25 live now until 16.30 GMT/17.30 CET on #ESAwebTV.
📺 watch.esa.int/Two/
📺 watch.esa.int/Two/
Our Ministerial Council starts today. Watch the first session live from 12.30 GMT/13.30 CET to know everything about ESA's future roadmap and budget. #CM25
📺 watch.esa.int
More details 👉 www.esa.int/About_Us/Min...
📺 watch.esa.int
More details 👉 www.esa.int/About_Us/Min...
November 26, 2025 at 1:22 PM
🔴 LIVE NOW: The first session of our Ministerial Council #CM25 live now until 16.30 GMT/17.30 CET on #ESAwebTV.
📺 watch.esa.int/Two/
📺 watch.esa.int/Two/
Reposted by John Debes
Cannot overstate how, from my perch as a national-security reporter, this would have been an earth-shattering scandal in a prior era.
Billionaire Binance founder Changpeng Zhao, pardoned by Donald Trump, has been accused of facilitating millions of dollars’ worth of payments to Hamas in the wake of its attack on Israel on October 7 2023. Zhao also financed the Trump family's entrance into the cryptocurrency market.
Binance founder Changpeng Zhao accused of facilitating payments to Hamas
Crypto tycoon pardoned by Donald Trump faces US court complaint from families of victims of October 7 attack
www.ft.com
November 25, 2025 at 4:33 AM
Cannot overstate how, from my perch as a national-security reporter, this would have been an earth-shattering scandal in a prior era.
Reposted by John Debes
NEW: Senators have called for an investigation after a ProPublica story revealed that Kristi Noem-connected firm the Strategy Group was secretly hired as a subcontractor on a $220 million DHS ad campaign.
Lawmakers Call for Probe of How Firm Tied to Kristi Noem Got Piece of $220 Million DHS Ad Contracts
The demands for an investigation come after a ProPublica story revealed that the Noem-connected Strategy Group was secretly a subcontractor on the ad campaign.
www.propublica.org
November 24, 2025 at 5:38 PM
NEW: Senators have called for an investigation after a ProPublica story revealed that Kristi Noem-connected firm the Strategy Group was secretly hired as a subcontractor on a $220 million DHS ad campaign.
Reposted by John Debes
I'm fully aware that citation numbers and indices are not a good metric for much of anything. However, I'm proudly going to share this one:
One of my papers has now been cited over 1000 times! Unsurprisingly, it's the original REBOUND paper.
One of my papers has now been cited over 1000 times! Unsurprisingly, it's the original REBOUND paper.
November 23, 2025 at 3:01 PM
I'm fully aware that citation numbers and indices are not a good metric for much of anything. However, I'm proudly going to share this one:
One of my papers has now been cited over 1000 times! Unsurprisingly, it's the original REBOUND paper.
One of my papers has now been cited over 1000 times! Unsurprisingly, it's the original REBOUND paper.
Reposted by John Debes
Storms that battered Alaska’s western coast this fall have brought renewed attention to low-lying Indigenous villages left increasingly vulnerable by climate change.
Alaska Native villages have few options and little US help as climate change devours their land
Storms that battered Alaska’s western coast this fall have brought renewed attention to low-lying Indigenous villages left increasingly vulnerable by climate change.
bit.ly
November 23, 2025 at 4:00 AM
Storms that battered Alaska’s western coast this fall have brought renewed attention to low-lying Indigenous villages left increasingly vulnerable by climate change.
Munazza is pretty cool, congrats!! She’s working hard scheduling all the JWST observations for the Rocky Worlds DDT.
Dr. Munazza Alam, an assistant astronomer at STScI, was named in The City University of New York's 50 Under 50 alumni awards in 2025. Each year the school celebrates a class of distinguished graduates who have made headway in their respective fields over the past year. 👏
Munazza Alam – The City University of New York
26 Colleges. One University.
www.cuny.edu
November 21, 2025 at 6:44 PM
Munazza is pretty cool, congrats!! She’s working hard scheduling all the JWST observations for the Rocky Worlds DDT.
Friday HSLA spectrum! My friend Beta Pictoris, first star to have its debris disk imaged and including STIS data I worked on as an undergrad, eleven programs in all. It has two planetary companions more massive than #Jupiter #astrosci #exoplanets 🔭
November 21, 2025 at 4:39 PM
Friday HSLA spectrum! My friend Beta Pictoris, first star to have its debris disk imaged and including STIS data I worked on as an undergrad, eleven programs in all. It has two planetary companions more massive than #Jupiter #astrosci #exoplanets 🔭
Reposted by John Debes
Cheers to the person who leaked the initial changes www.washingtonpost.com/national-sec...
In reversal, Coast Guard again classifies swastikas, nooses as hate symbols
The new order came hours after The Post reported the service would instead classify such symbols as “potentially divisive” under guidelines set for release next month.
www.washingtonpost.com
November 21, 2025 at 1:46 PM
Cheers to the person who leaked the initial changes www.washingtonpost.com/national-sec...
Reposted by John Debes
(1/n) Image thread about the LHA 120-N 159 (or just N159) region with #JWST NIRCam. Here the filters F300M (blue), F335M (red) and F460M (green) 🔭
I made F335M red because this is PAH, otherwise the entire image would be green.
Full resolution: commons.wikimedia.org/wiki/File:LH...
I made F335M red because this is PAH, otherwise the entire image would be green.
Full resolution: commons.wikimedia.org/wiki/File:LH...
November 21, 2025 at 6:38 AM
(1/n) Image thread about the LHA 120-N 159 (or just N159) region with #JWST NIRCam. Here the filters F300M (blue), F335M (red) and F460M (green) 🔭
I made F335M red because this is PAH, otherwise the entire image would be green.
Full resolution: commons.wikimedia.org/wiki/File:LH...
I made F335M red because this is PAH, otherwise the entire image would be green.
Full resolution: commons.wikimedia.org/wiki/File:LH...
Can I just say that spellchecking is officially dead? CNN, NYT, and Forbes now just littered with dumb mistakes
Target said it doesn’t think holiday sales will be enough to turn around a tough year.
Target Predicting Week Holiday Sales As Consumer Angst Weighs On Season
Target said it doesn’t think holiday sales will be enough to turn around a tough year.
www.forbes.com
November 20, 2025 at 1:57 PM
Can I just say that spellchecking is officially dead? CNN, NYT, and Forbes now just littered with dumb mistakes
Reposted by John Debes
Now it can (finally) be told. We've been tracking Comet 3I more or less continuously with PUNCH. Everything is fine. 3I is definitely very interesting – but it is most definitely *not* an alien spaceship undergoing maneuvers, no matter what that Boston guy says. ☀️🛰️🔭🧪 #3I #comet #not_aliens
NASA’s PUNCH Spies Interstellar Comet 3I/ATLAS - NASA Science
NASA’s PUNCH (Polarimeter to Unify the Corona and Heliosphere) mission observed interstellar comet 3I/ATLAS during its passage through the
science.nasa.gov
November 19, 2025 at 9:44 PM
Now it can (finally) be told. We've been tracking Comet 3I more or less continuously with PUNCH. Everything is fine. 3I is definitely very interesting – but it is most definitely *not* an alien spaceship undergoing maneuvers, no matter what that Boston guy says. ☀️🛰️🔭🧪 #3I #comet #not_aliens
The details are even more fishy than the top line summary. This is not due process at all
The facts are complicated, but here’s a summary of what appears to have happened based on the filings and today’s hearing:
NEWS: During a hearing in federal court in VA, prosecutors confirmed that the operative indictment in the case against James Comey was never shown to or voted on by the entire grand jury before it was presented in open court.
Defense counsel argued that’s a complete bar to further prosecution
Defense counsel argued that’s a complete bar to further prosecution
November 20, 2025 at 1:19 PM
The details are even more fishy than the top line summary. This is not due process at all
Reposted by John Debes
Texas Gov. Greg Abbott fought for months to keep secret emails between his office and Elon Musk. Now, hundreds of pages have been released.
Gov. Abbott released 1,400 pages of emails about Elon Musk. Most are blacked out.
Abbott fought for months to keep secret emails between his office and Elon Musk. Now, hundreds of pages have been released.
n.pr
November 20, 2025 at 12:52 PM
Texas Gov. Greg Abbott fought for months to keep secret emails between his office and Elon Musk. Now, hundreds of pages have been released.
Reposted by John Debes
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 19, 2025 at 10:08 PM
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...
Reposted by John Debes
Canada has announced an additional $528.5 million investment in ESA programmes at #CM25.
www.canada.ca/en/space-age...
www.canada.ca/en/space-age...
Canada Deepens Space Ties with Europe Through Historic Investment - Canada.ca
Today, at the SpaceBound 2025 Conference, the Honourable Mélanie Joly, Minister of Industry and Minister responsible for Canada Economic Development for Quebec Regions, made the historic announcement ...
www.canada.ca
November 19, 2025 at 8:00 AM
Canada has announced an additional $528.5 million investment in ESA programmes at #CM25.
www.canada.ca/en/space-age...
www.canada.ca/en/space-age...
The Hubble Spectroscopic Legacy Archive has just been featured by NASA's Science Data Portal! science.data.nasa.gov/features-eve...
Hubble Team Launches New Spectroscopic UV Data Archive | Science Data Portal
science.data.nasa.gov
November 18, 2025 at 6:56 PM
The Hubble Spectroscopic Legacy Archive has just been featured by NASA's Science Data Portal! science.data.nasa.gov/features-eve...
Reposted by John Debes
New paper from my group!
Stars aren’t born alone—they form in massive associations. If we want to understand how stars and planetary systems form, we need to figure out where today’s clusters came from… and where all their long-lost siblings ended up.
arxiv.org/abs/2511.07533
Stars aren’t born alone—they form in massive associations. If we want to understand how stars and planetary systems form, we need to figure out where today’s clusters came from… and where all their long-lost siblings ended up.
arxiv.org/abs/2511.07533
Lost Sisters Found: TESS and Gaia Reveal a Dissolving Pleiades Complex
Most star clusters dissolve into the Galaxy over tens to hundreds of millions of years after they form. While recent Gaia studies have honed our view of cluster dispersal, the exact chronology of whic...
arxiv.org
November 18, 2025 at 4:25 PM
New paper from my group!
Stars aren’t born alone—they form in massive associations. If we want to understand how stars and planetary systems form, we need to figure out where today’s clusters came from… and where all their long-lost siblings ended up.
arxiv.org/abs/2511.07533
Stars aren’t born alone—they form in massive associations. If we want to understand how stars and planetary systems form, we need to figure out where today’s clusters came from… and where all their long-lost siblings ended up.
arxiv.org/abs/2511.07533
Reposted by John Debes
Get your Hubble or Webb news as soon as it hits the "newsstands" with Inbox Astronomy!
What do you get if you sign up for Inbox Astronomy? Spectacular images and astronomical discoveries! Sign up to get news from the universe right in your inbox: https://bit.ly/3KSp8IY 🔭 🧪
November 18, 2025 at 2:55 PM
Get your Hubble or Webb news as soon as it hits the "newsstands" with Inbox Astronomy!
Reposted by John Debes
A new 3D map of interstellar dust with Gaia! 🌌
A new study, led by Marie Barbillon, exploited the spectroscopic parametriser from Gaia DR3 to build a high-resolution extinction map! It extends up to 4 kpc from the Sun, with a finer version focused on the Local Bubble area.
#astro #galactic
A new study, led by Marie Barbillon, exploited the spectroscopic parametriser from Gaia DR3 to build a high-resolution extinction map! It extends up to 4 kpc from the Sun, with a finer version focused on the Local Bubble area.
#astro #galactic
November 18, 2025 at 9:35 AM
All week I'm going to post some cool spectra from the new Hubble Spectroscopic Archive! First up, PDS 70, a star that hosts a protoplanetary disk and at least one planetary companion in a disk gap! #exoplanets #astrosci 🔭
November 18, 2025 at 3:19 PM
All week I'm going to post some cool spectra from the new Hubble Spectroscopic Archive! First up, PDS 70, a star that hosts a protoplanetary disk and at least one planetary companion in a disk gap! #exoplanets #astrosci 🔭