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Alastair Williams

@alastairwilliams

Space engineer, science writer, and author of The Quantum Cat

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06.01.2024
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Latest posts by Alastair Williams @alastairwilliams

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SpaceX president predicts rapid increase in Starship launch rate It's going to be hard to catch us, but I certainly hope people try."

"I would not be surprised if we fly 400 Starship launches in the next four years,” Shotwell said in 2024.

Considering they have flown just six times in the fifteen months since, they are really going to have to pick up the pace if they want to hit this ridiculous target!

07.03.2026 15:21 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

More than anything else it has convinced me that all the people running the US government are actual psychopaths.

07.03.2026 10:30 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Data Centres In Orbit Are Just As Crazy As You Think On the latest space hype

It's not just you, orbiting data centres really are a stupid idea.
#space #spacex #ai #astronomy

06.03.2026 13:54 πŸ‘ 8 πŸ” 3 πŸ’¬ 0 πŸ“Œ 0

Because they are incapable of thinking long-term. Or more than about a week ahead, really.

04.03.2026 21:09 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Is anyone running the US not currently a psychopath?

04.03.2026 13:51 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

The Chinese networks are a big threat to Starlink's dominance. They are unlikely to be used in the US, but there are plenty of places around the world that will see the value of an alternative and likely cheaper system.

02.03.2026 15:27 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Doesn't sound like they are on the same page at all...

02.03.2026 15:19 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I think the laws of economics will take them down well before they start trying to break the laws of thermodynamics.

24.02.2026 19:28 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

I never see anyone address the question of how Musk's massive arrays of solar panels are supposed to dodge debris and avoid collisions...

24.02.2026 19:22 πŸ‘ 2 πŸ” 0 πŸ’¬ 2 πŸ“Œ 0
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The Week in Space and Physics: Atoms For Space On the possibilities of nuclear propulsion, a vanishing star, the shape of Jupiter, and Artemis II.

Cool solar eclipse seen from orbit this week!

Plus a look at the possibilities of nuclear electric propulsion, a possible sighting of a failed supernova, a revision to the dimensions of Jupiter, and another delay to Artemis II.

#space #scicomm #astronomy #science πŸ§ͺπŸ”­

24.02.2026 19:19 πŸ‘ 9 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
Venus (a dark circle) against the yellow background of the Sun.

Venus (a dark circle) against the yellow background of the Sun.

In 2012 the Hinode satellite photographed Venus silhouetted against the Sun. This will not happen again until December 2117.
#space #art #astronomy

24.02.2026 08:51 πŸ‘ 34 πŸ” 11 πŸ’¬ 1 πŸ“Œ 0

...and started asserting that he can build a city on the Moon instead. I wonder what happens when he learns how long the lunar night is?

09.02.2026 20:35 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I don't think its a coincidence they plan an IPO this year. These plans will probably end up like Musk's plans to build cities on Mars...

04.02.2026 00:14 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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25.01.2026 16:44 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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The Debris of Creation: Hubble Watches Worlds Collide On the discovery of violent collisions around Fomalhaut

New post today: Hubble picks up signs of dwarf worlds colliding around Fomalhaut.

πŸ§ͺπŸ”­

22.01.2026 14:02 πŸ‘ 23 πŸ” 7 πŸ’¬ 1 πŸ“Œ 1

Oh look, it worked

22.01.2026 14:00 πŸ‘ 1 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

Time to stand up to the bully

17.01.2026 20:44 πŸ‘ 5 πŸ” 1 πŸ’¬ 1 πŸ“Œ 0
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This is quite a post

www.planetearthandbeyond.co/p/reality-is...

17.01.2026 06:26 πŸ‘ 8092 πŸ” 2730 πŸ’¬ 255 πŸ“Œ 754
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17.01.2026 13:22 πŸ‘ 3 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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The False Colours of Astronomy The stars don't look like the telescopes say they do

What do the colours of astronomical images actually mean? And why can the same object appear very different depending on the telescope we use to look at it?
πŸ”­πŸ§ͺ

27.12.2025 16:55 πŸ‘ 20 πŸ” 7 πŸ’¬ 0 πŸ“Œ 0
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The Week in Space and Physics: The Lost Sisters of the Pleiades On the stars of the Pleiades, a superflare from a black hole, the second flight of New Glenn, and the aurora.

New post up, looking this week at how the sister-stars of the Pleiades are now scattered across the night sky.

πŸ§ͺπŸ”­

26.11.2025 14:37 πŸ‘ 10 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

This is 1) a stupid idea and 2) something that will never work economically anyway.

26.11.2025 10:56 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
A bright, greeny–white splotch in the centre of the image is the nucleus and coma of comet 3I/ATLAS. To the upper right streams the major dust tail. The background comprises distant stars against a black background, with the NGC 4691 galaxy at upper left.

A bright, greeny–white splotch in the centre of the image is the nucleus and coma of comet 3I/ATLAS. To the upper right streams the major dust tail. The background comprises distant stars against a black background, with the NGC 4691 galaxy at upper left.

This is an incredible image of comet 3I/ATLAS, taken by Satoru Murata ICQ Comet Observations group on 16 November 2025 from western New Mexico.

Structure within the major dust tail from the comet is clearly visible, together with two smaller jets trailing the nucleus and maybe even an anti-tail.

24.11.2025 23:50 πŸ‘ 397 πŸ” 85 πŸ’¬ 8 πŸ“Œ 0

I am not sure this work is better than my bot's, but I did try to integrate all NIRCam data. I had to compromise the resolution, it was too much for my laptop to handle in full scale.
JWST πŸ”­: NASA, ESA, CSA, STScI.

24.11.2025 08:01 πŸ‘ 35 πŸ” 7 πŸ’¬ 2 πŸ“Œ 0
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The Biggest Solar Flare of 2025 A flare hits Earth. But when will a really big one come?

New post up about the recent big and beautiful auroral displays.

#space #science #technology πŸ§ͺπŸ”­

24.11.2025 13:10 πŸ‘ 9 πŸ” 3 πŸ’¬ 1 πŸ“Œ 0

Is it just because they lack knowledge? Or they don’t recognise when an idea is clearly bullshit? Or is there simply not an audience for it?

11.11.2025 13:54 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

The other angle is the space industry, which again suffers from overly credulous reporters. There’s nothing wrong with calling out some of the ridiculous companies and projects out there, but very few journalists actually do it.

11.11.2025 13:54 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

I want to believe people want to know about this, but that they are put off by poor articles that don’t explain anything or go for sensational stories.

11.11.2025 13:53 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

On the other hand, I like the idea of writing posts that use recent papers or popular astronomy news topics as a way to explain the background theory. Most people know almost nothing about dark matter (astronomers included, but that’s another story) or anything else about the cosmos around us.

11.11.2025 13:53 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

But as I’ve written before, this is really rare. If a headline tells you about a recent discovery of aliens, or of dark matter, or of a new fundamental theory, 99% of the time it will be completely false. And that just breeds mistrust in science

11.11.2025 13:52 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0