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!

It's me, back on the beeb, writing about those pesky dark comets lurking in our solar system. Enjoy! bbc.com/future/article…

Designing and building life support systems for space stations requires a delicate balance of knowledge, safety and cost. Jonathan O’Callaghan explores how the host of commercial station developers are approaching the challenge. aerospaceamerica.aiaa.org/features/stayi…

Ogres are like onions. But we've long thought stars are too – and now we have evidence they have layers, thanks to a new type of supernova that might have stripped the star before it exploded. Story by me in The New York Times nytimes.com/2025/08/20/sci…

Forget Planet X and Planet Nine – there might be a Planet Y warping objects in the outer solar system. Story by me in New Scientist newscientist.com/article/249348…

Somewhere at the edge of the solar system, there might be a new world, dubbed Planet Y, similar to Earth in size. newscientist.com/article/249348…

Astronomers, I'm looking for something a bit niche for a story I'm working on. Is anyone planning to use Rubin to look for any superluminal effects (eg light echoes, image doubling, time reversal GRBs)? If you are, or know anyone, do get in touch! jdaoca[at]gmail[dot]com

Are you a space startup in South East Asia? Get in touch! I'm a space journalist based in Bangkok that is on the lookout for interesting stories in the region. If you're launching something, building something, developing something, etc let me know! jdaoca[at]gmail[dot]com

Discovered today that Thailand has the largest radio telescope (40 metres) in South East Asia. Worth a visit! en.wikipedia.org/wiki/Thai_Nati…

If we’re going to find life, TRAPPIST-1e might be our best bet. By next year, we should know for sure if this alien planet has an atmosphere. But already there is excitement at hints this is not a barren world. Story by me in Scientific American scientificamerican.com/article/jwst-s…

Hey supercomputer Twitter, I’m looking for experts to comment on Europe’s new JUPITER supercomputer for a story in Nature. If that’s you, or you know someone, do get in touch. Thanks! jdaoca[at]gmail[dot]com

Very timely, but here's my latest article for The Planetary Society on how we're closing in on Earth-like planets in our galaxy. planetary.org/articles/other…

Great to see my story on where we might actually find alien life on the BBC homepage today! bbc.com/future/article…

A beach ball-sized asteroid exploded like a bomb over France two years ago, losing 98% of its mass in a single event. It could mean some incoming asteroids are tougher than we thought, raising planetary defence concerns. Story by me in @NewScientist newscientist.com/article/249659…

Nothing can travel faster than light – but there are some pretty convincing illusions in the universe that appear to do so. From light echoes to backwards explosions, what can we learn from these unusual superluminal events? Story by me in @NewScientist newscientist.com/article/249582…

Some things we see in space appear to outpace light. Now we are learning to harness these bizarre optical illusions to understand the mysteries of neutron stars, gamma ray bursts and more newscientist.com/article/249582…

One mega constellation is already crowding orbit. Now more are coming. SpaceX's Starlink will soon be joined by thousands of satellites from the US and China – and space is about to get busy. What's going to happen? Story by me in Aerospace America aerospaceamerica.aiaa.org/features/heavy…

This is such a fun study. Einstein's theory of general relativity, and the curvature of spacetime, might save some planets from doom around white dwarfs! Story by me in New Scientist newscientist.com/article/249897…