Jonathan O’Callaghan

@Astro_Jonny

British Science Journalist of the Year 2024. Words @NewScientist @SciAm @NYTimes @QuantaMagazine @Nature @WIRED + more. Sometimes on TV/Radio. [email protected]

London, UK

Joined September 2011

4KFollowing

10KFollowers

Pinned

Jonathan O’Callaghan Retweeted

LIGO@LIGO · Jul 15

"Gravitational wave detector LIGO spots fast-spinning ‘forbidden’ black holes that challenge physics models" nature.com/articles/d4158… by @Astro_Jonny discusses the #GW231123 and the potential of gravitational-wave astronomy

10.0K

Pinned

Jonathan O’Callaghan@Astro_Jonny · Jul 10

Wow, this is massive news. Fair play @Space_Forge

IIntuitive Machines@Int_Machines · Jul 10

Shaping the Future of U.S. Space Manufacturing We've partnered with Space Forge to provide expertise that informs the design of our Earth reentry vehicle, enabling the precise return of semiconductors from orbit to Earth. Learn more: intuitivemachines.com/post/intuitive…

383

Jonathan O’Callaghan@Astro_Jonny · Jul 18

Remember those strange “little red dots” JWST found in the early universe? Turns out they’re not only in the early universe – we just found three close by! Story by me in @newscientist newscientist.com/article/248872…

Astro_Jonny's tweet card. Small, compact galaxies seen in the early universe have puzzled astronomers – finding these unusual objects closer to home could provide hints about how they form

401

Jonathan O’Callaghan@Astro_Jonny · Jul 17

One of my favourite stories I’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 scientificamerican.com/article/new-in…

Astro_Jonny's tweet card. Scientists are racing to learn as much as possible about the interstellar comet 3I/ATLAS before it fades from view forever

10.0K

Jonathan O’Callaghan@Astro_Jonny · Jul 15

This weird hot Jupiter just got even weirder, because it might have former pretty darn far from its star before diving in. Story by me in @AGU_Eos eos.org/articles/this-…

Astro_Jonny's tweet card. WASP-121b, an already unusual planet, might have a remote origin that explains some of its peculiar properties—from iron rain to the unexpected presence of methane.

294

Jonathan O’Callaghan@Astro_Jonny · Jul 15

Me on @LIGO’s monster black hole merger announced yesterday, for Nature, with this great quote: It’s like “four grandparents merging into two parents merging into one baby black hole” Enjoy! nature.com/articles/d4158…

Astro_Jonny's tweet card. Nature - Gravitational-wave detector LIGO spots fast-spinning ‘forbidden’ black holes that challenge physics models.

275

Jonathan O’Callaghan Retweeted

Aerospace America@AeroAmMag · Jul 10

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

323

Jonathan O’Callaghan@Astro_Jonny · Jul 10

Interstellar object 3I/ATLAS might be the oldest comet we’ve ever seen! Models suggest it originated from a star near the Milky Way’s thick disk more than 8 billion years ago, wandering the galaxy alone until now. Story by me in @newscientist newscientist.com/article/248777…

Astro_Jonny's tweet card. Astronomers tracking an interstellar object flying through the solar system think it comes from a star at least 8 billion years old, almost twice the age of our sun

805

Jonathan O’Callaghan@Astro_Jonny · Jul 9

Another week, another front cover 😎 Is geoengineering a realistic solution to save the planet, alongside reducing emissions? My latest in BBC Science Focus – on sale now!

Astro_Jonny's tweet image. Another week, another front cover 😎

Is geoengineering a realistic solution to save the planet, alongside reducing emissions?

My latest in BBC Science Focus – on sale now!

307

Jonathan O’Callaghan Retweeted

Jonathan O’Callaghan@Astro_Jonny · Jul 1

The age of commercial space stations is nearly upon us. But how will they actually keep astronauts alive in space? Inside the slightly unglamorous world of life support systems, from toilets to carbon dioxide scrubbers, by me for @AeroAmMag aerospaceamerica.aiaa.org/features/stayi…

628

Jonathan O’Callaghan@Astro_Jonny · Jul 1

Hey editors, need space stories? Let me know! My schedule for the next week or two is fairly open (aside from preparing to move 6,000 miles across the globe).

446

Jonathan O’Callaghan Retweeted

The Times and The Sunday Times@thetimes · Jun 29

The reignited space race may be over almost as soon as it started, with the US and European space agencies at the mercy of the White House ⬇️ thetimes.com/us/news-today/…

7.0K

Jonathan O’Callaghan@Astro_Jonny · Jun 30

Didn't pick up The Observer yesterday? I've got you covered - you can read my story on Rubin online, with a bit of detail on UK involvement that's not been widely reported. Enjoy! observer.co.uk/news/science-t…

Astro_Jonny's tweet card. The Rubin Observatory in Chile is set to reveal unfathomable numbers of galaxies, asteroids, comets and more

365

Jonathan O’Callaghan Retweeted

Ben Spencer@Ben_Spencer · Jun 30

This is such a great piece by @Astro_Jonny about the chaos at Nasa right now, including the impact it is having on the moon missions and European space projects. 👇🏻 @thetimes thetimes.com/article/9a659a…

2.0K