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Sera Markoff

@profsera

Plumian Prof in Astro @U Cambridge & Prof Astro-/Particle Physics @U Amsterdam. All things black hole, member: Event Horizon Telescope, Africa Millimeter Telescope, CTAO. Space, sci-fi, cats, music, valve amps, other unabashed geekery. www.seramarkoff.com

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Latest posts by Sera Markoff @profsera

Africa Millimetre Telescope to bring black holes into sharper focus for movies | Event Horizon Telescope

Read more here: eventhorizontelescope.org/news/2026/03...

09.03.2026 17:12 πŸ‘ 2 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
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We're happy to announce a newly signed agreement for the construction of the Africa Millimeter Telescope (AMT). This will open great possibilities for astronomy on the African continent and make black hole images even sharper!

#astronomy #blackholes #EHT #AMT #africa

09.03.2026 17:11 πŸ‘ 19 πŸ” 7 πŸ’¬ 2 πŸ“Œ 0

...but also be the first millimetre-radio telescope in Africa. For my research in particular the synergy with the H.E.S.S. Telescopes and CTAO brings a special "sauce" as we'll be able to study #blackholes at both extremes of the electromagnetic spectrum, simultaneously! [2/2]

09.03.2026 21:09 πŸ‘ 7 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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Africa Millimetre Telescope to bring black holes into sharper focus for movies | Radboud University An international consortium led by Radboud University has secured a contract agreement for the construction of a radio telescope that will become the Africa Millimetre Telescope (AMT) in Namibia.

I'm excited to share a major milestone in our @erc.europa.eu SyG "Blackholistic": the agreement w/ mtex to construct a new 14m mm-radio dish in Namibia, that will become the Africa Millimetre Telescope (AMT). πŸ”­πŸ§ͺ AMT will enable not just sharper images of #blackholes w/ @ehtelescope.bsky.social [1/2]

09.03.2026 21:07 πŸ‘ 18 πŸ” 2 πŸ’¬ 1 πŸ“Œ 1

I'm helping organise a conference on #blackholes πŸ”­πŸ§ͺ at Oxford U, and the LOC have outdone themselves! Direct quote from their email:

"Also..between 1200-1400 on March 26th we will have two alpacas at the meeting which you can pet in case you’re needing a distraction from all the black holes.." πŸ¦™πŸ€­

06.03.2026 17:01 πŸ‘ 13 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
Photo of Prof James Chibueze at the podium with his title slide projected in the background β€œAstronomy and Astrophysics as Development Drivers in Africa”

Photo of Prof James Chibueze at the podium with his title slide projected in the background β€œAstronomy and Astrophysics as Development Drivers in Africa”

Photo of Prof James Chibueze receiving the prize from Prof Sheila Rowan of the Royal Society

Photo of Prof James Chibueze receiving the prize from Prof Sheila Rowan of the Royal Society

It was such an honour to celebrate my Africa Millimetre Telescope πŸ§ͺπŸ”­colleague Prof James Chibueze’s Rising Star Africa Prize at the @royalsociety.org tonight!

05.03.2026 01:02 πŸ‘ 13 πŸ” 1 πŸ’¬ 1 πŸ“Œ 0

I’m at the launch of the Southampton Space Institute which is part of something called β€œSpace South Central”, quite funny if you’re a West Coast hiphop fan…

04.03.2026 11:14 πŸ‘ 3 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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ElfQuest Reading Room - ElfQuest WELCOME TO THE ELFQUEST COMICS LIBRARYHere you will find nearly every issue and collection of ElfQuest comics published between 1978 and 2013. ElfQuest Reading Room

My friend just sent me this link to a free Elfquest site with all the comics going back to the beginning! This was the first comic I ever collected, and yes I was a pre-teen, and just reading a few pages was the brain cleanse I needed today:
elfquest.com/reading-room/

03.03.2026 17:41 πŸ‘ 6 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

Trump has launched an illegal regime change war.

As someone who has survived the horrors of war, I know military strikes will not make us safer; they will inflame tensions and push the region further into chaos.

When we abandon diplomacy, we choose destruction.

28.02.2026 15:06 πŸ‘ 3698 πŸ” 780 πŸ’¬ 71 πŸ“Œ 10

My Eurostar was cursed by a swan, hear me out. 1st: train diverted bc...swan. 2nd: our electricity cut out, we stopped in some small village to reboot the system. 3rd: limped into Brussels, had to go thru passport control again and 400 ppl assigned random train cars and left to fight for seats. 😱

25.02.2026 18:26 πŸ‘ 8 πŸ” 2 πŸ’¬ 1 πŸ“Œ 0
Screenshot of Dutch explanation that the Amsterdam to London train is delayed because of "an animal on the tracks".

Screenshot of Dutch explanation that the Amsterdam to London train is delayed because of "an animal on the tracks".

It's in the Dutch part actually but that is funny about the UK swans! πŸ˜‚

25.02.2026 15:07 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I'd still place my bets on the train :)

25.02.2026 14:46 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

...said swan has appeared to add 40 mins to our journey, could they not, I don't know, pick it up or something?

25.02.2026 14:43 πŸ‘ 3 πŸ” 0 πŸ’¬ 2 πŸ“Œ 0

Of all the reasons for a train to be diverted...I just heard for the first time that our Eurostar is going a different route because of a swan on the tracks! 🦒

25.02.2026 14:40 πŸ‘ 14 πŸ” 0 πŸ’¬ 4 πŸ“Œ 0
Waxing moon -- we had a stormy day (with lightning and thunder!) so this is one I took about a month ago.

Waxing moon -- we had a stormy day (with lightning and thunder!) so this is one I took about a month ago.

I just realized that today is Chinese New Year, the 1st day of Ramadan, AND Fat Tuesday. That means the Chinese new moon lined up with the Ramadan crescent and also fell exactly the right amount of time before the Easter full moon.

An extremely rare lineup of 3 major moon-based traditions!

18.02.2026 06:57 πŸ‘ 251 πŸ” 48 πŸ’¬ 2 πŸ“Œ 8

Immigrants are stealing all the good jobs in violent crime.

18.02.2026 14:51 πŸ‘ 22 πŸ” 3 πŸ’¬ 3 πŸ“Œ 0
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notorious radical left communist rag says tax the rich

18.02.2026 16:03 πŸ‘ 20519 πŸ” 6591 πŸ’¬ 468 πŸ“Œ 455

Love this!

18.02.2026 21:10 πŸ‘ 7 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Orange fluffy cat lying belly up, staring off into space looking a bit stunned

Orange fluffy cat lying belly up, staring off into space looking a bit stunned

Just watched Marty Supreme and this more or less sums up how we feel #caturday

14.02.2026 23:04 πŸ‘ 8 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Kudos to @hogg.bsky.social for his new paper on arXiv that is stimulating a lot of discussion around the value of astrophysics and also the discourse around #LLMs. I think even non astro people will find this interesting! πŸ”­πŸ§ͺ

arxiv.org/pdf/2602.10181

12.02.2026 18:00 πŸ‘ 14 πŸ” 3 πŸ’¬ 0 πŸ“Œ 0

Happy #InternationalDayofWomenandGirlsinScience! πŸ§ͺπŸ”­Here's a nice highlight using a photo from our collaboration meeting last summer in Berlin.

11.02.2026 22:44 πŸ‘ 16 πŸ” 3 πŸ’¬ 0 πŸ“Œ 0
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UK β€˜could lose generation of scientists’ with cuts to projects and research facilities Researchers say best scientists are taking posts overseas because of lack of job stability at home

Glad to see pushback picking up in the media about the proposed massive cuts to UK particle/astro/nuclear physics πŸ§ͺπŸ”­. Everyone understands that tough choices have to be made, but not investing in your future is a surefire way of, well, not having much of one πŸ€·β€β™€οΈ

www.theguardian.com/science/2026...

08.02.2026 16:47 πŸ‘ 32 πŸ” 16 πŸ’¬ 2 πŸ“Œ 0

πŸ˜‚

08.02.2026 01:44 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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I have officially transitioned from Dutch to British!

07.02.2026 14:18 πŸ‘ 14 πŸ” 0 πŸ’¬ 3 πŸ“Œ 0

Very cool results! And that is some amazing visualization software…is it open source? 😁

03.02.2026 22:12 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I've lived/worked in two others so this isn't unfamiliar πŸ˜‚

03.02.2026 06:59 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 2
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Expert Comment: Cuts to fundamental research will hurt the UK’s Chris Lintott, ProfessorΒ of Astrophysics at Oxford’s Department of Physics, responds to the news that University funding for astronomy and physics research will be cut by almost a third.

Great commentary on the recently announced budget cuts to physics and astronomy in the UK, by @chrislintott.bsky.social

www.ox.ac.uk/news/2026-02...

02.02.2026 22:12 πŸ‘ 12 πŸ” 1 πŸ’¬ 1 πŸ“Œ 0
Photo of the singer Ezra Fuhrman with her band on stage at the Tolhuistuin in Amsterdam.  She’s holding the mic singing in a blue dress and the lights behind her are reddish and diffusing out in a starlike pattern through a bit of haze.

Photo of the singer Ezra Fuhrman with her band on stage at the Tolhuistuin in Amsterdam. She’s holding the mic singing in a blue dress and the lights behind her are reddish and diffusing out in a starlike pattern through a bit of haze.

In a dark world at least there’s Ezra Fuhrman #secretlivesofscientists

28.01.2026 09:45 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Photo of 7 bars/boxes of variations on Dubai chocolate plus a bag of white chocolate and orange peel covered dates!

Photo of 7 bars/boxes of variations on Dubai chocolate plus a bag of white chocolate and orange peel covered dates!

Meanwhile just returned from a fantastic conference at NYU Abu Dhabi on Cosmic Collisions. And I return bearing gifts. These are for my next group meeting, where we will be conducting a serious taste test of #Dubaichocolate to put the original Fix brand to the test!!

18.01.2026 16:02 πŸ‘ 7 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I had never thought of black holes in terms of 'evil vacuum cleaners' but that image is now stuck in my head.

18.01.2026 14:30 πŸ‘ 4 πŸ” 1 πŸ’¬ 1 πŸ“Œ 0