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Michael Merrifield

@astromikemerri.bsky.social

Emeritus professor of astronomy at the University of Nottingham. Too frequent appearances on YouTube. All my own views.

5,114 Followers  |  573 Following  |  2,442 Posts  |  Joined: 03.07.2023  |  2.2983

Latest posts by astromikemerri.bsky.social on Bluesky

My wife needed to know what a β€œvexillation” is. I think my definition of a final tile that won’t quite fit was much better than the real one.

07.10.2025 12:58 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Why is there more gold on a greenfinch than there is on a goldfinch? πŸͺΆ

07.10.2025 11:09 β€” πŸ‘ 11    πŸ” 0    πŸ’¬ 5    πŸ“Œ 0

If the EU never achieved anything else, it would have justified its existence by ensuring that I only have to carry one charging cable around with me.

07.10.2025 11:03 β€” πŸ‘ 12    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Time for avian elevenses. πŸͺΆ

07.10.2025 10:54 β€” πŸ‘ 12    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0

My first introduction to Northern Ireland was in the late 1990s when a taxi driver drove me down the Garvaghy Road, because he wanted to try to explain the place to me a bit.

Since then, I have understood that flags on lampposts have nothing to do with caring about society.

29.09.2025 12:52 β€” πŸ‘ 19    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0

it's actually not two Nobels for Josephson junctions, just one that tunnelled over a gap of 52 years

07.10.2025 10:02 β€” πŸ‘ 60    πŸ” 17    πŸ’¬ 2    πŸ“Œ 0

600 AU.

06.10.2025 19:48 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Tara then Goose Fair!

06.10.2025 14:19 β€” πŸ‘ 4    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Who are you betting on for this year’s physics Nobel Prize? πŸ§ͺ

I am plumping for Katori and Ye for βš›οΈ πŸ•°οΈ.

(I would’ve put my money on Shor and Deutsch for βš›οΈπŸ’», but likely too close to last year.)

06.10.2025 12:51 β€” πŸ‘ 5    πŸ” 0    πŸ’¬ 2    πŸ“Œ 0

When I was an admissions tutor, I struggled to understand why it was even a question that a student with a B grade obtained at a sink comprehensive had demonstrated at least as much aptitude for university study as one who’d been tutored to an A grade at a small-class well-resourced private school.

06.10.2025 12:22 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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ESA spots asteroid that made very close approach to Earth ESA spots asteroid that made very close approach to Earth

Did you duck? πŸ”­

www.esa.int/ESA_Multimed...

06.10.2025 10:18 β€” πŸ‘ 9    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

I always thought they were further apart.

06.10.2025 07:51 β€” πŸ‘ 5    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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πŸͺΆFeeder a little less of a rollercoaster than yesterday as winds start to ease.

05.10.2025 14:26 β€” πŸ‘ 10    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

I thought he was taking a leak for a moment!

05.10.2025 11:53 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Goldfinch clinging to our storm-tossed bird feeder. πŸͺΆ

04.10.2025 15:46 β€” πŸ‘ 8    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

You were; I was mostly pointing out that it’s a comet.

04.10.2025 15:33 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Comets lack technology.

04.10.2025 14:16 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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October Harvest Moon: When to see the first supermoon of 2025 It will be visible on 7 October and Sarah Keith-Lucas explains why it will be the biggest and brightest full Moon so far this year.

πŸ”­PSA: super moons aren’t that super. www.bbc.co.uk/weather/arti...

04.10.2025 12:56 β€” πŸ‘ 10    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

It’s not to late…

04.10.2025 12:25 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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Finally, a use case for AR and AI.

04.10.2025 10:15 β€” πŸ‘ 7    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

600 AU. That is very close in interstellar travel terms, requiring a huge amount of fuel to change course.

Oh, and it’s a comet.

04.10.2025 08:30 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Into -> until

04.10.2025 07:15 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

When I want to be an arse I use Twitter. Here, I mostly just post fun stuff.

03.10.2025 18:35 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Too soggy for a proper walk, so just a quick wander over to Arnot Hill Park while waiting for my MOT (passed β€” yay!). Don’t coots have big feet? πŸͺΆ

03.10.2025 13:57 β€” πŸ‘ 9    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

That’s not long ago β€” leaving your course correction into your are less than 600 AU from here is leaving it very late.

03.10.2025 11:39 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 2    πŸ“Œ 0

I’m blushing.

03.10.2025 11:37 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Just entertaining this silly notion for a moment, leaving it that late to make a course correction would be hugely inefficient energy-wise.

But it’s a comet, anyway.

03.10.2025 09:32 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 2    πŸ“Œ 0

I am pretty sure my worst cutaneous afflictions were visible from that kind of distance.

02.10.2025 15:48 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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A somewhat autumnal stroll at Watchwood Plantation to pay my respects to the Polish airmen.

02.10.2025 15:27 β€” πŸ‘ 11    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Nottingham cheese riot - Wikipedia

Wishing all those who celebrate it a happy Great Cheese Riot Day.

en.m.wikipedia.org/wiki/Notting...

02.10.2025 15:19 β€” πŸ‘ 10    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0

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