Jonathan O'Callaghan

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/

3.2K followers494 following1.4K posts

Jonathan O'Callaghan
@astrojonny.bsky.social

Hello quantum gravity experts, I am looking for anyone that can comment on this paper for a story I'm writing: www.ox.ac.uk/news/2026-08... If that's you, or you know someone, do let me know. jdaoca[at]gmail[dot]com Thanks!

ox.ac.ukScientists observe Einstein’s gravity in the quantum worldAn international team including Oxford physicists has observed a long-predicted effect of gravity on a falling quantum object for the first time. The study provides an experimental connection between ...
Jonathan O'Callaghan
@astrojonny.bsky.social

Okay hear me out - what if a monster neutrino detected off the coast of Sicily came from a primordial black hole inside a fifth dimension that was formed by cosmic strings? Class this as just a little bit speculative. Story by me in Scientific American www.scientificamerican.com/article/this...

scientificamerican.comScientists saw a very weird particle. Some say it came from an exploding, five-dimensional black holeAn unexplained high-energy neutrino detected three years ago could be linked to a primordial black hole, perhaps one more even unusual than previously thought

Jonathan O'Callaghan reposted

Jonathan O'Callaghan
@astrojonny.bsky.social

I'm back in The New York Times, with news that we might have spotted a first magnetic field on an exoplanet! If so it would be more than 2,000 times stronger than Earth's, and could be a key tool in future hunts for habitability. Exciting! www.nytimes.com/2026/09/29/s...

nytimes.comRadio Waves Coming From an Alien Planet May Be a Cosmic First (Gift Article)Beta Pictoris b appears to have an aurora caused by a powerful magnetic field. If confirmed, it would be the first such field known outside our solar system.
Jonathan O'Callaghan
@astrojonny.bsky.social

I'm back in The New York Times, with news that we might have spotted a first magnetic field on an exoplanet! If so it would be more than 2,000 times stronger than Earth's, and could be a key tool in future hunts for habitability. Exciting! www.nytimes.com/2026/09/29/s...

nytimes.comRadio Waves Coming From an Alien Planet May Be a Cosmic First (Gift Article)Beta Pictoris b appears to have an aurora caused by a powerful magnetic field. If confirmed, it would be the first such field known outside our solar system.
Jonathan O'Callaghan
@astrojonny.bsky.social

Next week Perseverance will reach 2,000 Mars sols (days) on the Red Planet. Please bring its samples home 😶

Landru79@landru79.bsky.social

#NASA's #Mars #Perseverance rover Front Left Hazard Avoidance Camera (Hazcam) Sol 1981 1987 1992 mars.nasa.gov/mars2020/mul... NASA/JPL-Caltech/j. Roger

Jonathan O'Callaghan reposted

Paul Voosen
@voosen.me

New Horizons is now *three days away* from shutting off its two heliophysics instruments, simply because NASA has not provided the $2M in funding it had promised to the mission last year or this year. There is no science basis for shutting these off. Our earlier coverage:

science.orgNASA’s New Horizons mission may shut down two instruments over lack of fundingDecision risks “incalculable loss” of data from the edge of the Sun’s influence, scientists say
Jonathan O'Callaghan
@astrojonny.bsky.social

Pretty wild graph from ESA's latest space environment report, out this month. It anticipates hundreds of collisions in orbit in the coming decades. The report also says that three satellites/rocket bodies enter Earth's atmosphere every day on average at the moment 😶

Jonathan O'Callaghan
@astrojonny.bsky.social

whoa

Bart⚓️@bartgonnissen.bsky.social

The Facial Expressions of Tethys by artist Julius von Bismarck. A suspended high-sea buoy that moves in real time. Sensors on a twin buoy out in the Atlantic Ocean send live satellite data to motors inside the museum. This makes the indoor buoy copy the exact, real-time movements of the ocean waves.

Jonathan O'Callaghan
@astrojonny.bsky.social

If anyone wants to teach undergradaute cosmology in Thailand, I just heard that Mahidol University in Bangkok has lacked a cosmology lecturer for 8 years but would really like one. Just throwing it out there!