Prof Stephen Serjeant

Prof Stephen Serjeant

@stephenserjeant.bsky.social

Astronomy Prof at Open University. 26.2. #RejoinEU. Views not OU’s and often not even mine. He/him 🐘 https://mas.to/@stephenserjeant 🧵 https://www.threads.net/@prof.stephen.serjeant ORCID 0000-0002-0517-7943 https://orcid.org/0000-0002-0517-7943

3,575 Followers 1,245 Following 1,057 Posts Joined Aug 2023
8 hours ago
Preview
Hopeful news about the STFC Crisis I've just got time this evening to pass on news that the Chair of the Parliamentary Select Committee looking at he current STFC debacle (see this account), Chi Onwurah, has responded to the events in extremely frank terms. Here is an excerpt: The full response - which is definitely well worth reading - can be found here: documents…

Hopeful news about the STFC Crisis

I've just got time this evening to pass on news that the Chair of the Parliamentary Select Committee looking at he current STFC debacle (see this account), Chi Onwurah, has responded to the events in extremely frank terms. Here is an excerpt: The full response -…

13 6 1 0
23 hours ago
Preview
First 6 Days of Iran War Cost U.S. $11.3 Billion, Pentagon Says

The 2026 National Science Foundation budget is $8.75 Billion.

4,264 1,969 34 113
23 hours ago

This is the entire budget of NASA's Planetary Science Division for *four years*

369 165 5 3
1 day ago
Extract from Impact Assessment. NHS England is separately reviewing the evidence for the use of MAF in adults with gender dysphoria, with the aim of a consultation on the evidence later in 2026.

Given that every 'evidence review' under Labour is conducted to 'build the evidence case against' can there be any real doubt about how this ends?

The complete removal from the NHS, and possible criminalization, of all medication for trans people.

538 143 31 20
3 days ago
Email from Chris Reynolds to the AXIS Team. Subject is disappointing AXIS news. Text of e-mail reads: Dear AXIS Friends,


The AXIS team has received some very disappointing news – we have been informed by NASA HQ that AXIS is not eligible for selection and hence the Concept Study Report (CSR) will not be subjected to the full review process.   


AXIS represents the scientific aspirations of a large international community. As a member of one of the AXIS science working groups, you deserve a candid explanation from the PI of what happened and why.  That is the purpose of this note.


NASA’s decision was programmatic and not based on a review of the technology or science; the mission profile described in the submitted CSR was over the allowed budget and schedule.  How was such a thing possible?   In short, with NASA-GSFC as the AXIS managing center, the mission formulation process was critically compromised by the seismic shifts occurring in NASA and the Federal government.  The AXIS study team was hit hard by three unprecedented challenges: 


NASA’s Deferred Resignation Program (DRP) and the pressure at GSFC to resign/retire created a rapid and uncontrolled loss of over 20 personnel with key expertise during a critical mission formulation period, including the main GSFC Project Manager (Jimmy Marsh) and the X-ray mirror lead (Will Zhang) and many discipline engineers. GSFC priorities rapidly realigned to the FY2026 President’s Budget Request (PBR) that eliminated the Probe program, further reducing the availability of GSFC engineering and mission formulation personnel (incl. cost analysts and schedulers) over the critical Summer and Fall months. Key work was halted for almost seven weeks when the core GSFC AXIS study team, dominated by NASA civil servants, was furloughed during the government shutdown.  NASA HQ’s extension to the CSR submission deadline (from 18-Dec-2025 to 29-Jan-2026) was inadequate compensation for the disruption and lost time.


Taken together, these factors disrupted the basic grass-roots costing process (which requires extensive “reach back” to the discipline engineers to assess labor requirements) as well as the cost-design iteration process that is central to the formulation of a cost-capped and schedule-constrained mission.  While the mission design was finalized in April, our initial grass-roots costing (which was ~10% over budget) could only be completed in September due to the lack of assigned resources.  With the subsequent government shutdown and then “pens down” in early-December forced by the GSFC Executive Review process, there was no opportunity to work through the set of cost/schedule savings that had already been identified by the AXIS team. 


Ultimately, the GSFC executive council gave AXIS leadership the choice of submitting a CSR with a non-compliant schedule and cost, or not submitting a CSR at all.  We of course proceeded with the submission, including a narrative that we understood the path to a cost-compliant profile (that we would have discussed with the review panels during the Site Visit). NASA HQ has ruled this stance to be unacceptable.


It is important to stress that NASA’s programmatic decision was before any technical review had been conducted.  The decision was NOT due to any concerns about AXIS technology. Indeed, the AXIS Phase A work had major successes with furthering Indeed, the AXIS Phase A work had major successes with furthering the key technologies. GSFC’s Next Generation X-ray Optics (NGXO) team successfully demonstrated iridium-coated, stress-compensated mirror segments that meet AXIS baseline requirements (i.e. segment-level performance at sub-arcsecond level).  NGXO also built the first AXIS demonstrator mirror module, learning critical lessons about mirror alignment, mounting and bonding. On the detector side, MIT quickly moved to fabricate AXIS-like CCDs and, working with our colleagues at Stanford, recently demonstrated that they achieve the required readout rate and spectral resolution. 


Similarly, NASA’s decision was NOT a judgment of the importance of AXIS science.  The AXIS science case was rated excellent in the Step 1 review, and it only became stronger during our Phase A study.  The AXIS Community Science Book, which many of you contributed to, is an extremely powerful demonstration of the relevance and importance of high-resolution X-ray observations to all areas of astrophysics. The Science Book is one of the most important legacies of the AXIS Phase A study and, I believe, will help define future mission concepts for many years to come.  I thank you all from the bottom of my heart for all of your work on this.


AXIS has been a long journey; we started under the leadership of Richard Mushotzky more than nine years ago.  During that time, it’s been an enormous privilege to work with amazing people; the AXIS science team, the incredible/brilliant GSFC and Northrop Grumman engineers, and the wider astrophysics community.  I am, quite frankly, livid that AXIS ultimately fell victim to the programmatic chaos of 2025. The astronomical community deserves better. I hope that NASA leadership, especially at GSFC and HQ, can have an honest discussion about how to better support and protect programs during extraordinary times. For now, as a community, we must look forward. There is still one excellent mission under consideration for the Probe program, PRIMA, and we wish them a smooth and speedy path to selection and flight.  In X-ray astronomy, the SMEX and MidEX programs represent concrete pathways for focused, high-impact missions, and the scientific case we built for AXIS provides a strong foundation for those concepts. The technologies we advanced in Step 1 and Phase A, particularly the NGXO mirror work and the MIT/Stanford detector demonstrations, can anchor the next generation of proposals. Most importantly, the AXIS Community Science Book, representing more than 500 scientists across, is a living document and a powerful signal to NASA leadership that this community is organized, serious, and not going anywhere. I encourage everyone to use it actively, as a resource for future concept development, for Astro2030 engagement, and for building the next mission that will deliver high angular resolution X-ray imaging to address the fundamental questions about black hole growth, galaxy evolution, and the hot universe that motivated AXIS from the beginning. This community built something remarkable over nine years and that doesn't end here.


Thank you again for your support of AXIS over these times.


Best

Chris and the AXIS leadership team

The @axisprobe.bsky.social team learned that the phase A concept study report of AXIS (the Advanced X-ray Imaging Satellite) will not be reviewed because the lost personnel at NASA Goddard and government shutdown impacted our schedule and budget. 🔭 Here is the PI's e-mail with the explanation.

231 97 22 28
3 days ago

The NHS has now stopped all medication - puberty blockers and hormones - for trans minors. For most, unless they get drugs from other sources, this means a lifetime, in an increasingly violent and transphobic society, unable to pass. Under Wes Streeting NHS policy is harm and death for trans people.

520 191 27 21
4 days ago

Just fascinating to see Blair, a man whose reputation was ruined by the Iraq war, advocate joining a war that is exponentially stupider and more chaotic. How is it possible to learn nothing from the worst mistake of your life?

4,232 781 289 79
4 days ago

Useful reading for anyone trying to keep up with the #STFC funding crisis, including links to evidence that the Drayson review partition (that safeguarded PPAN science from facilities cost fluctuations) existed until last year. Why it went is still unclear 🔭🧪

7 1 0 0
6 days ago

AND INTRODUCING

JOHN HURT

AS

THE WAR QUEER

485 108 16 1
1 week ago
Preview
AI Translations Are Adding ‘Hallucinations’ to Wikipedia Articles AI translated articles swapped sources or added unsourced sentences with no explanation, while others added paragraphs sourced from completely unrelated material.

AI translated articles swapped sources or added unsourced sentences with no explanation, while others added paragraphs sourced from completely unrelated material.

394 128 9 24
1 week ago

The stats for Reform UK supporters tell a story that should have been obvious to everyone in @labouruk.bsky.social for years: chasing Reform voters is strategically, catastrophically stupid. McSweeney+ have driven the party into the ground and Mahmood+ still show no signs of having learned anything

2 0 1 0
1 week ago
Post image

Astronomer Nevil Maskelyne racked up a £141 alcohol bill during his 18 month expedition to observe the 1761 Transit of Venus.

That’s over £26,000 ($35,000) in today’s money.

Or almost £50 per day.

He claimed it on expenses and would go on the become Astronomer Royal.

#astronomy #histsci 🧪

97 18 6 5
1 week ago
Post image
198 68 9 7
1 week ago

Counterpoint: no it isn’t

9 0 1 0
2 weeks ago

I've seen madder headlines

6 0 0 0
2 weeks ago

Pleased to see this. The current system regressively, hideously entrenches generational financial advantage. I have an academically brilliant friend from a single-parent family, and she has a HUNDRED THOUSAND POUNDS of student loan debt. But rich kids start life with their debt paid by parents.

4 0 0 0
2 weeks ago

I'm constantly trying (/failing) to get this point across.

If you're a trained expert in a field, then it may be worthwhile to question the scientific consensus of your peers.

If you're not, the scientific consensus is absolutely the best you can do and it's arbitrary foolishness to disregard it.

3,761 853 54 50
2 weeks ago

Very well referenced & well argued summary of where we are on the latest STFC funding crisis. I'd only add two more: George Efstathiou's analysis of STFC's governance problems telescoper.blog/2026/02/06/t... and @ersatzben.com's forensic analysis of the 'buckets' 🔭🧪 www.ersatzben.com/p/the-bucket...

11 3 0 0
2 weeks ago
YouTube
ONE HOUR OF DANCING MON MOTHMA | Andor Season 2 | Disney+ YouTube video by Star Wars

Ten Hours of Boing Sound Effects used to be my go-to YouTube background soundtrack for coding, but I can't find it any more, so I use this instead 🧪 www.youtube.com/watch?v=y6wL...

5 2 0 0
2 weeks ago

It never ceases to confound me just how many folks think the point of essays is to provide teachers with essays. That teachers just like, collect them, or need them for sustenance or something. Rather than the point of them being the *actual fucking act of learning how to think about shit*

1,869 488 48 45
2 weeks ago

Unpopular opinion: the outcome appears to be good. Badenoch undertook on air to review the student loans policy with Martin Lewis. If this happens, Labour will need to raise their game too. And about time. Student loans are a catastrophic policy scandal. Well done to Martin Lewis for his initiative

5 0 0 0
2 weeks ago
Preview
‘Don’t go to the US – not with Trump in charge’: the UK tourist with a valid visa detained by ICE for six weeks Karen Newton was in America on the trip of a lifetime when she was shackled, transported and held for weeks on end. With tourism to the US under increasing strain, she says, ‘If it can happen to me, i...

Totally appalling way to treat anyone but in this case this woman had not broken any immigration rule at all. And the British consulate were completely and inexcusably useless. Awful and I think deserves some response from the Foreign Office.

www.theguardian.com/us-news/2026...

351 130 4 14
3 weeks ago
Post image

Okay, this is quite outstanding from Bedford Council.

11,932 3,080 204 242
3 weeks ago
GLORIOUS beautiful guilded ceiling with frescos of mythological characters, gods flying in the sky with horses, ships, marble, shells, ...

Meanwhile, here's the terribly boring ceiling in the room next to where the ELSA meeting is happening. Why are university rooms and buildings always so dull dull dull?

3 1 1 0
3 weeks ago
Screenshot of our dormant Twitter/X account, showing only one post and a pop-up saying "You aren't verified yet". Screenshot of our Twitter/X account page after deletion, saying this account doesn't exist.

At our f2f meeting today we decided to delete our dormant Twitter/X account, following the excellent example of @ec-euclid.bsky.social. 🧪🔭

69 17 3 0
3 weeks ago
ELSA team members, smiling, standing under the ELSA logo

The ELSA @ec-euclid.bsky.social team meeting this week in beautiful Bologna. Amazing things being done with Euclid spectroscopy - watch this space :) 🧪🔭

7 3 0 0
3 weeks ago
A picture of Sartre

Text: Hell is other people, except for you.
Happy Valentine's Day
from Sartre and @PhilosopherGames

I laughed out loud reading this.

4 1 0 0
3 weeks ago

So much for the Large Hadron Collider too. It's a lie, they're really tiny. And don't get me started on submillimetre galaxies

1 0 0 0
3 weeks ago

For running inspiration (or, in my case, for monitoring from under my duvet), the Barkley Marathons have just started #BM100 - updates at @keithdunn.bsky.social

6 0 0 0
3 weeks ago
Preview
The Bucket Stops Here UKRI’s new funding framework takes a stab at classifying budgets – but doesn’t yet govern research

Bucket theory is unglamorous but very important. @ersatzben.com is forensic here - a must read for those interested in UK research policy
www.ersatzben.com/p/the-bucket...

26 9 3 2