Jonathan O'Callaghan's Avatar

Jonathan O'Callaghan

@astrojonny.bsky.social

British Science Journalist of the Year 2024. Words about space in The New York Times, Scientific American, New Scientist, BBC, WIRED, + more. Sometimes on the TV and radio. jdaoca@gmail.com @astro_jonny on Twitter Portfolio: authory.com/JonathanOCallaghan

2,576 Followers  |  396 Following  |  740 Posts  |  Joined: 19.06.2023  |  2.075

Latest posts by astrojonny.bsky.social on Bluesky

Thanks!

09.08.2025 02:14 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Ah I see the section youโ€™re talking about. Iโ€™m not saying dark comets are interstellar, Iโ€™m saying they behave similarly to โ€˜Oumuamua.

09.08.2025 01:42 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Thanks Teddy!

09.08.2025 01:39 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Lot of familiar faces (Darryl, @astrokiwi.bsky.social, Jessica, Yuichi, Aster, yours truly) in this excellent article about the decidely local dark comets

08.08.2025 16:31 โ€” ๐Ÿ‘ 8    ๐Ÿ” 2    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Iโ€™d be there in a heartbeat. And thanks!

09.08.2025 01:38 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Preview
The mysterious 'dark comets' prowling our Solar System These strange objects could explain how water arrived on Earth, but may also be a previously unrecognised threat to our planet. Now, a spacecraft is headed towards one to investigate.

It's me, back on the beeb, writing about those pesky dark comets lurking in our solar system. Enjoy!

www.bbc.com/future/artic...

08.08.2025 13:55 โ€” ๐Ÿ‘ 19    ๐Ÿ” 2    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 1

Incredibly clement here!

08.08.2025 10:32 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Waiting for that Thai space sector boom any second

08.08.2025 08:16 โ€” ๐Ÿ‘ 8    ๐Ÿ” 1    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 0
Picture of a family of 4 in Bangkok

Picture of a family of 4 in Bangkok

Hi editors - we have successfully relocated to Bangkok, and I am available for work again! If you have any space stories you need writing, or ideas you need exploring, do let me know. Cheers!

08.08.2025 08:12 โ€” ๐Ÿ‘ 10    ๐Ÿ” 0    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 0

Uh yes I think soโ€ฆ and no, wasnโ€™t planning on it!

07.08.2025 06:32 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

I am in Thailand right now. The two parallel pins are fine, or three prongs!

07.08.2025 06:21 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Six days until we relocate to Bangkok! Very real now, and very exciting. If any of you space people are based out that way, hit me up! Will be keen to expand my Asia coverage.

01.08.2025 13:44 โ€” ๐Ÿ‘ 8    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Nice!

31.07.2025 23:31 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Someone accused me of being a woke liberal in a bar last night but my alcohol free mimosa mocktail I just drank while watching the womenโ€™s Euro final begs to differ

27.07.2025 20:12 โ€” ๐Ÿ‘ 16    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Journalism in action!

24.07.2025 19:42 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Whoa. Rubin has already seen 3I/ATLAS!

21.07.2025 06:40 โ€” ๐Ÿ‘ 17    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 1
Preview
Avi and 3I/ATLAS Avi Loeb has gained a reputation for suggesting and outright claiming things could be alien spacecraft even when thereโ€™s little to no objective reason to think so. So when the third interstellar objec...

On Avi and 3I/ATLAS:
sites.psu.edu/astrowright/...
โ˜„๏ธ ๐Ÿ”ญ

18.07.2025 16:21 โ€” ๐Ÿ‘ 89    ๐Ÿ” 29    ๐Ÿ’ฌ 6    ๐Ÿ“Œ 3

Thank you!

18.07.2025 11:28 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Preview
Little red dot galaxies have now been found in our local universe Small, compact galaxies seen in the early universe have puzzled astronomers โ€“ finding these unusual objects closer to home could provide hints about how they form

Remember those strange โ€œlittle red dotsโ€ JWST found in the early universe?

Turns out theyโ€™re not only in the early universe โ€“ we just found three close by!

Story by me in @newscientist.com

www.newscientist.com/article/2488...

18.07.2025 09:46 โ€” ๐Ÿ‘ 24    ๐Ÿ” 3    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Canโ€™t it be both? Alien dinosaurs?

17.07.2025 21:10 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

So, for anyone getting Avi Loebโ€™s emails, or wondering if his claims have any merit this time around: all of his alien spacecraft stuff for this object rest on his assertion that it is very large and has no detected coma.

This is incorrect. It is clearly, clearly a comet.

17.07.2025 13:12 โ€” ๐Ÿ‘ 113    ๐Ÿ” 33    ๐Ÿ’ฌ 4    ๐Ÿ“Œ 7

My kids need to eat

17.07.2025 17:47 โ€” ๐Ÿ‘ 4    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Front cover of latest WIRED

Front cover of latest WIRED

My article in latest WIRED

My article in latest WIRED

Iโ€™m in WIRED this month, chatting about supersonic planes.

What are you waiting for? Go and buy it!

17.07.2025 17:47 โ€” ๐Ÿ‘ 6    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Itโ€™s definitely hostile. Plan accordingly.

17.07.2025 17:25 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Preview
New Interstellar Object Is Full of Mysteries. Hereโ€™s What Scientists Most Want to Learn Scientists are racing to learn as much as possible about the interstellar comet 3I/ATLAS before it fades from view forever

One of my favourite stories Iโ€™ve written this year.

A third known interstellar object is flying through our solar system right now. What are the 7 biggest questions we want to answer about it?

Story by me in @sciam.bsky.social

www.scientificamerican.com/article/new-...

17.07.2025 15:55 โ€” ๐Ÿ‘ 19    ๐Ÿ” 4    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 2

Stupid sunny Birmingham

17.07.2025 10:33 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Post image

Tbh if I was an alien I would probably send something like this. It will fly in or near most of the planets and is mostly in the flat plane of our Solar System. Good reconnaissance trajectory!

17.07.2025 10:00 โ€” ๐Ÿ‘ 5    ๐Ÿ” 0    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 0
Post image Post image 17.07.2025 08:12 โ€” ๐Ÿ‘ 18    ๐Ÿ” 1    ๐Ÿ’ฌ 5    ๐Ÿ“Œ 0

They need a pulley system going up and a slide going down

16.07.2025 08:39 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Isn't that escalator like 5 meters long?

16.07.2025 08:34 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

@astrojonny is following 20 prominent accounts