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Jonathan O'Callaghan

@astrojonny.bsky.social

Freelance space journalist. British Science Journalist of the Year 2024. Words in The New York Times, Scientific American, New Scientist, BBC, WIRED, + more. Bangkok, Thailand jdaoca@gmail.com @astro_jonny on Twitter https://www.jonathanocallaghan.com/

2,760 Followers  |  427 Following  |  908 Posts  |  Joined: 19.06.2023  |  1.8244

Latest posts by astrojonny.bsky.social on Bluesky

Okay but like how many updates does Google Chrome need

12.12.2025 08:18 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

And then 5I, 6I, 7I… exciting!

11.12.2025 12:38 β€” πŸ‘ 4    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Something I hadn’t said aloud until today… as closest approach for 3I/ATLAS nears, remember that we’re *probably* only a few months away from detecting 4I/Rubin!

11.12.2025 01:58 β€” πŸ‘ 20    πŸ” 4    πŸ’¬ 1    πŸ“Œ 3
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The moment the earliest known man-made fire was uncovered - BBC News Archaeologists in the UK have discovered the world's oldest evidence of humans lighting fires

This is legit fascinating

www.bbc.com/news/resourc...

11.12.2025 05:31 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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No technological barriers to refueling GEO satellites, NASA report finds

Refueling satellites in geostationary orbit is probably doable, says a new NASA-backed report – but is there demand for it?

Story by me in Aerospace America

aerospaceamerica.aiaa.org/no-technolog...

11.12.2025 00:44 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Genuinely interested in what his reasoning will be though considering this will probably be the case.

09.12.2025 07:19 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Most disorganised invasion ever

09.12.2025 07:09 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 2    πŸ“Œ 0

Avi Loeb's mind is going to be blown when Rubin finds like 50 interstellar objects

09.12.2025 07:09 β€” πŸ‘ 13    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Of course, he invented satellite mega constellations right?

09.12.2025 06:16 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
Post image

38 Vulcan Centaurs

09.12.2025 06:11 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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Project Kuiper becomes Amazon Leo ahead of LEO broadband service debut Project Kuiper has shed its seven-year-old code name, emerging as Amazon Leo Nov. 13 as the company nears the start of initial broadband services from the low Earth orbit constellation next year.

Totally missed that Amazon's Project Kuiper is now Amazon Leo. At least that'll save me mistyping Kiuper every other article.

spacenews.com/project-kuip...

09.12.2025 06:08 β€” πŸ‘ 7    πŸ” 0    πŸ’¬ 2    πŸ“Œ 0

I do miss the old days 10+ years ago when we could just liaise with scientists directly without needing to go through NASA media teams...

09.12.2025 03:34 β€” πŸ‘ 2    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

Had a really weird incident last week where I was told by NASA PR that they wouldn't let me interview the lead author of an upcoming embargoed study until... after the study was published. Which kind of defeats the point of an embargo, no.

09.12.2025 03:32 β€” πŸ‘ 5    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0

There's now a NASA story on this one, complete with a very cool visualisation of how this would work!

science.nasa.gov/science-rese...

09.12.2025 03:14 β€” πŸ‘ 6    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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One of the most promising Earth-like worlds may not have an atmosphere after all "We reported hints of methane, but the question is, 'is the methane attributable to molecules in the atmosphere of the planet or in the host star?'"

TRAPPIST-1eek

😬

www.space.com/astronomy/ex...

09.12.2025 02:59 β€” πŸ‘ 1    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

Finding that perfect coffee shop as a freelancer with the perfect blend of temperature, seat height, good coffee, and vibe is such a fine art.

09.12.2025 01:58 β€” πŸ‘ 6    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
08.12.2025 04:46 β€” πŸ‘ 5    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Have we just discovered aliens? British astronaut Tim Peake, astronomer Dame Maggie Aderin-Pocock and astrophysicist Becky Smethurst have all hinted at evidence of alien life

It's nearly the two-year anniversary of The Spectator predicting aliens were about to be announced because of some off-hand comments made during Jools Holland's 2023 New Year's Eve Hootenanny

www.spectator.co.uk/article/have...

07.12.2025 02:59 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Spotify Wrapped but it has the (surely simple) ability to ignore when the family has played Taylor Swift/Frozen/Soda Pop on Google Home

04.12.2025 03:31 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Forming moon may have taken three big impacts early in Earth’s history Conventionally, the moon is thought to have formed during one big impact, but a three-impact model might make more sense

Our moon might have formed not from 1 giant impact, but multiple smaller impacts on Earth.

Just three could have formed the necessary moonlets to stick together into our current moon, and could explain one of its key mysteries.

Story by me in @newscientist.com

www.newscientist.com/article/2506...

04.12.2025 01:39 β€” πŸ‘ 5    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Whoa. 96%!!!

03.12.2025 23:05 β€” πŸ‘ 5    πŸ” 1    πŸ’¬ 1    πŸ“Œ 1
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For the 1st time ever, 8 spacecraft are docked to the International Space Station It's the first time all the spacecraft docking ports on the current configuration of the ISS have been occupied.

It's easy to forget we live in a future with a fully operating space station with multiple docking ports for various spacecraft.

www.space.com/space-explor...

03.12.2025 06:18 β€” πŸ‘ 19    πŸ” 3    πŸ’¬ 0    πŸ“Œ 1

Hey space Bluesky, I'm looking for an expert on the Moon's formation to comment on a paper I'm reporting on.

If that's you, or you know someone, do let me know. Would be looking to chat later today. Thanks!

jdaoca[at]gmail[dot]com

02.12.2025 06:39 β€” πŸ‘ 14    πŸ” 15    πŸ’¬ 1    πŸ“Œ 2
Homer lying on a couch enjoying christmas but it's not

Homer lying on a couch enjoying christmas but it's not

02.12.2025 06:31 β€” πŸ‘ 5    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

πŸ₯³πŸ₯³πŸ₯³

28.11.2025 10:00 β€” πŸ‘ 5    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Text about UK funding decreasing

Text about UK funding decreasing

boo

28.11.2025 04:03 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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ESA raises more than 22 billion euros at ministerial Member states of the European Space Agency are contributing more than 22 billion euros for the next three years, very close to its overall goal.

Wow. A 32% increase for ESA over the next three years, up to 22 billion euros. Not bad.

spacenews.com/esa-raises-m...

28.11.2025 04:00 β€” πŸ‘ 13    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0

Ah! My bad

27.11.2025 11:02 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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chewbacca is peeking out from behind a tree with the words joyful screaming above him ALT: chewbacca is peeking out from behind a tree with the words joyful screaming above him
27.11.2025 06:38 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

If you disagree with ROTJ over ESB please go back and watch the latter and tell me you actually enjoy the plodding Hoth opening, the dreary Dagobah scenes, or the forgettable Cloud City events

27.11.2025 06:00 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

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