#radioastronomy — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #radioastronomy, aggregated by home.social.
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🛰️ Starlink's Signal Leakage Is Threatening Radio Astronomy's Most Critical Frequencies
- Starlink satellites emit unintended signals 10,000 times stronger than target cosmic signals.
- Researchers detected 112,534 Starlink emissions contaminating ITU-protected radio astronomy frequency bands.
- Current ITU regulations ignore unintended satellite hardware leakage, leaving astronomers without legal protection -
The Echoing Universe: How Radio Astronomy Helps Us See the Invisible Cosmos by Emma Chapman, 2026
How learning to "listen" to the universe using radio waves has revolutionized our understanding of everything from gravity to little green men. "Passionate and witty" Publishers Weekly
In space, no one can hear you scream. But the universe is far from silent. It's been speaking all along, broadcasting its stories and secrets, for those who know how to listen.
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The Echoing Universe: How Radio Astronomy Helps Us See the Invisible Cosmos by Emma Chapman, 2026
How learning to "listen" to the universe using radio waves has revolutionized our understanding of everything from gravity to little green men. "Passionate and witty" Publishers Weekly
In space, no one can hear you scream. But the universe is far from silent. It's been speaking all along, broadcasting its stories and secrets, for those who know how to listen.
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The Echoing Universe: How Radio Astronomy Helps Us See the Invisible Cosmos by Emma Chapman, 2026
How learning to "listen" to the universe using radio waves has revolutionized our understanding of everything from gravity to little green men. "Passionate and witty" Publishers Weekly
In space, no one can hear you scream. But the universe is far from silent. It's been speaking all along, broadcasting its stories and secrets, for those who know how to listen.
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The Echoing Universe: How Radio Astronomy Helps Us See the Invisible Cosmos by Emma Chapman, 2026
How learning to "listen" to the universe using radio waves has revolutionized our understanding of everything from gravity to little green men. "Passionate and witty" Publishers Weekly
In space, no one can hear you scream. But the universe is far from silent. It's been speaking all along, broadcasting its stories and secrets, for those who know how to listen.
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The Echoing Universe: How Radio Astronomy Helps Us See the Invisible Cosmos by Emma Chapman, 2026
How learning to "listen" to the universe using radio waves has revolutionized our understanding of everything from gravity to little green men. "Passionate and witty" Publishers Weekly
In space, no one can hear you scream. But the universe is far from silent. It's been speaking all along, broadcasting its stories and secrets, for those who know how to listen.
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Gadget Review:
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Starlink’s Signal Leakage Is Threatening Radio Astronomy’s Most Critical Frequencies
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"Curtin University study finds SpaceX hardware leakage up to 10,000 times stronger than the cosmic signals SKA-Low must detect"9.9.2026
#Astronomie #Astronony #CurtinUniversity #Radioastronomie #RadioAstronomy #Raumfahrt #Satelliten #Spaceflight #Spacex #SKA #Starlink
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Gadget Review:
"
Starlink’s Signal Leakage Is Threatening Radio Astronomy’s Most Critical Frequencies
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"Curtin University study finds SpaceX hardware leakage up to 10,000 times stronger than the cosmic signals SKA-Low must detect"9.9.2026
#Astronomie #Astronony #CurtinUniversity #Radioastronomie #RadioAstronomy #Raumfahrt #Satelliten #Spaceflight #Spacex #SKA #Starlink
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Gadget Review:
"
Starlink’s Signal Leakage Is Threatening Radio Astronomy’s Most Critical Frequencies
"
"Curtin University study finds SpaceX hardware leakage up to 10,000 times stronger than the cosmic signals SKA-Low must detect"9.9.2026
#Astronomie #Astronony #CurtinUniversity #Radioastronomie #RadioAstronomy #Raumfahrt #Satelliten #Spaceflight #Spacex #SKA #Starlink
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Gadget Review:
"
Starlink’s Signal Leakage Is Threatening Radio Astronomy’s Most Critical Frequencies
"
"Curtin University study finds SpaceX hardware leakage up to 10,000 times stronger than the cosmic signals SKA-Low must detect"9.9.2026
#Astronomie #Astronony #CurtinUniversity #Radioastronomie #RadioAstronomy #Raumfahrt #Satelliten #Spaceflight #Spacex #SKA #Starlink
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Gadget Review:
"
Starlink’s Signal Leakage Is Threatening Radio Astronomy’s Most Critical Frequencies
"
"Curtin University study finds SpaceX hardware leakage up to 10,000 times stronger than the cosmic signals SKA-Low must detect"9.9.2026
#Astronomie #Astronony #CurtinUniversity #Radioastronomie #RadioAstronomy #Raumfahrt #Satelliten #Spaceflight #Spacex #SKA #Starlink
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🚨 Exciting New Science🚨
Could astronomers have finally found the key to solving one of the Universe's strangest mysteries?
In recent years, the emergence of a new class of objects known as Long-Period Transients (LPTs) has baffled radio astronomers. These bizarre objects emit powerful radio pulses every few minutes to hours - but their behaviour shouldn't really be possible according to our current understanding of how other objects, like pulsars, emit radio waves.
Now, a newly discovered white dwarf binary system may be providing the strongest clue yet. Some researchers are even describing it as a potential "Rosetta Stone" for understanding these mysterious objects.
I had a chat with PhD candidate Kovi Rose from the University of Sydney about this discovery, what makes this system so unusual, and how it could help unravel the mystery of LPTs.
Check out my latest feature article on #SpaceAustralia here: https://www.spaceaustralia.com/feature/new-long-period-transient-reveals-its-secrets
📸 Animation: C. Knox & J.P. Pritchard
#RadioAstronomy #astrodon #astrophysics #LongPeriodTransients
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Well, here's some very exciting news!
I've been wanting to share this for a few months, but had to await the pre-print to drop.
A NEW GLITCH EVENT ON A MILLISECOND PULSAR HAS BEEN OBSERVED!
These events are extremely rare - only two others since MSPs were discovered.
Glitches are more commonly observed in the younger, canonical pulsar population as MSPs are much older and should have sorted out these types of disruptive events over their evolution.
That's what makes them so stable!
OR ... maybe they're not as stable as we once thought ...
This new paper predicts that we should see a glitch per MSP once every 400 years or so.
Glitches, profile changes .... as our instruments become more sensitive and datasets expand in time, we're starting to see that MSPs might not be as stable as we once thought ...
That's really important!
https://www.spaceaustralia.com/news/new-glitch-millisecond-pulsar
📸 NASA SVS
#SpaceAustralia #RadioAstronomy #Astrodon #Astrophysics #Science #Pulsars
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I am so very excited to share this story. Def. a career highlight!
Having the opportunity to sit down and have a one-on-one candid chat with the woman who discovered pulsars and changed the course of astrophysics, leading to me being extremely passionate about this topic and eventually moving into a career of pulsar astronomy. Yeah, this was big.
I hope you enjoy this interview, where Prof. Bell Burnell offers some personal insight into the history of the big discovery as well as the legacy of one of astronomy’s most iconic and influential figures.
What an honour it is to tell this story!
https://www.spaceaustralia.com/feature/interview-dame-professor-jocelyn-bell-burnell
📸 University of Cambridge
#SpaceAustralia #RadioAstronomy #Pulsars #JocelynBellBurnell #Astrophysics #Science #Astrodon
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Today was a good day. I got to meet one of my heroes.
Got to spend one-on-one time with the woman who discovered pulsars, Dame Prof. Jocelyn Bell Burnell, and interview her for a #SpaceAustralia article 🥺🥺🥺
And she signed a copy of my first-ever PhD paper which I will now have framed and remember forever! 😭😭😭
She is the most humble, nicest person. Just kindness, personified. And such an extremely interesting life - as you can imagine.
I'll publish my article and interview with her in about 12 hours from now (around 8:30am Sydney time) - so keep an eye out for it.
Thanks to Manisha Caleb who took this photo of us.
#Pulsars #RadioAstronomy #JocelynBellBurnell #Astrodon #Science #Astrophysics
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*** EXCITING NEWS ****
Dame Prof. Jocelyn Bell Burnell is coming to Sydney!
A few of us early-career scientists will be sharing our science and the stage with her.
BUT BUT BUT ... I've been granted a one-on-one interview with her for a #SpaceAustralia article!
What an honour!
I get to spend time / have a chat with the woman who discovered pulsars (the objects that I research) - and then be able to share that story with everyone.
It's a huge thing for me!
To be able to write the story, from first-hand account, of that of a Titan in my field of research / astronomy!
JBB will be in Sydney from next week and is also giving a public lecture at the University of Sydney.
Sadly, it looks like the event has already sold out for those who couldn't grab tickets, but keep an eye out for my SpaceAustralia article - will be released on 21st October!
#Pulsars #Science #RadioAstronomy #Astrophysics #JocelynBellBurnell #Astrodon
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A personal milestone ✅
I’m incredibly proud to share that my first-ever, first-author paper has been accepted for publication in the Publications of the Astronomical Society of Australia (PASA)!
Last week I got to share this work with the pulsar community at the Sardinia Pulsar Conference too.
This project has been at the very heart of my PhD journey so far - a deep, four-year analysis into an unusual and still-mysterious profile change event in one of the most stable and widely used pulsars, PSR J1713+0747. It first appeared on my radar in early 2021 and, since then, it’s been a fascinating and humbling experience trying to unravel what really happened.
In pulsar timing, we rely on the long-term stability of millisecond pulsars to search for phenomena like nanohertz gravitational waves using pulsar timing arrays. But what happens when that stability falters?
This paper explores that very question - examining what changed on this millisecond pulsar, how the polarisation evolved, and what it might mean for the future of precision timing efforts as we prepare for a new generation of ultra-sensitive telescopes.
Seeing this work now out in the world - contributing to the scientific conversation is something I’ve dreamt of for a long time (the last notch to feel like I have fully moved into my science career!). I hope it helps our community better understand the complex and wild behaviour of these exotic stellar clocks.
Read my feature article on SpaceAustralia.com below - and if you have questions about the research, I’d love to chat!
https://www.spaceaustralia.com/feature/pulsar-threw-tantrum
📸 R. Mandow et al. 2025
#Pulsars #RadioAstronomy #Astrophysics #SpaceAustralia #Astrodon
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👀👀👀👀
Super neat preprint! 📡
A rare, hot-Jupiter exoplanet orbits the pulsar PSR J2322-2650.
Astronomers used #JWST to observe it across the full orbit, and found its atmosphere rich in carbon AND it having a strong westward wind! 🤯
So glad that people are using JWST to look at the pulsar planets, esp. since the pulsar is not going to be visible at the JWST wavelengths.
These things are orbiting so close to the pulsar that they are being ablated (spider pulsar!), and one side of them is gonna glow more than the other side.
The first exoplanets discovered were pulsar planets!
They are, however, extremely rare because to form a pulsar you need a supernova, and so things get messy.
Here's an article I wrote about them a little while back on #SpaceAustralia
https://www.spaceaustralia.com/news/science-talk-what-are-pulsar-planets
#Pulsars #Astrophysics #Science #Astrodon #RadioAstronomy #JWST
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An Emerging Risk To #RadioAstronomy 📡
Using a prototype SKA-Low instrument, a new analysis from the International Centre for Radio Astronomy Research (ICRAR) has detected Starlink signals leaking into protected radio bands.Radio frequency interference from Starlink not only spans the narrowband intended emissions, but also broadband unintended emissions too, coming from propulsion and avionics.
This RFI is unregulated and affects key science goals.
Starlink appears in ~30% of all sky images.
This new study, from Dylan Grigg at Curtin University, is not the first to study the impacts of Starlink on #RadioAstronomy, but is the largest of its kind, and quantifies how this type of radio frequency interference - that comes from above - will impact the mega-science SKA project.
My latest piece for #SpaceAustralia
https://www.spaceaustralia.com/news/emerging-risk-radio-astronomy
📸 Astro_Work 🔭 (supplied) / Griggs et al. 2025
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A multiwavelength glimpse at a space oddity!
Astronomers from ICRAR have led a global team to reveal new insights into the growing population of Long-Period Transients.
What makes ASKAP J1832-0911 stand out from the rest of the Long-Period Transients is that, for the first time, coincident X-ray emission, along with radio emissions, have also been detected from such an object, thanks to the Chandra X-ray Observatory.
Check out my new article on #SpaceAustralia here:
https://www.spaceaustralia.com/feature/askap-and-chandra-catch-pulses-long-period-transient
📸 ICRAR
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EVERYONE 🚨
The SKAO has released some short video of one of the SKA-Low stations (located in Australia) making a pulsar detection.
The SKA won’t be finished until around 2030s but stations will switch on so we’re heading into the early data collection stages.
If you’ve never heard of the SKA, it’s a new instrument being built in Australia and South Africa — and will be the most powerful radio telescope on our planet.
It’s going to change our view of the Universe, and has been decades in the making.
Read more: https://www.spaceaustralia.com/feature/road-leads-square-kilometre-array
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More exciting, unexplained science!
An emerging class of objects in #RadioAstronomy, mostly discovered in the last few years, still can't be explained.
Now, two new multi-wavelength studies might have answers.
Wrote about both these Aussie astronomy cases, and how they might be giving us those additional clues, to narrow in on what we are seeing.
Are these an entirely new object all together? OR, do we need to re-think our physics? Both scenarios are fascinating.
My next piece for #SpaceAustralia:
https://www.spaceaustralia.com/feature/multi-wavelength-views-new-galactic-radio-astronomy-mysteries
📸 N. Hurley-Walker /MWA / Curtin / ICRAR
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Some exciting results!
Using MeerKAT (super sensitive telescope array) the MeerKAT Pulsar Timing Array (MPTA) team have also found supporting evidence (with their assumptions and models) of the gravitational wave background (GWB) that other Pulsar Timing Arrays (PTAs) announced last year. This is further independent verification!
The Universe rattles!
I had a chat with Dr. Matt Miles from Swinburne Uni / OzGrav about his lead-author paper and results: https://www.spaceaustralia.com/feature/mpta-finds-evidence-gravitational-wave-background
But the fun doesn't stop there! An additional paper, co-authored by Rowina Nathan, used the MPTA data to make the most detailed map of the GWB, and found an intriguing anisotropy (though, statistically, could be insignificant). If it turns out to be true it shows the GWB is not isotropic, and we could be seeing a unique system or some unknown cosmology. Rowina wrote a piece in #SpaceAustralia about this too: https://www.spaceaustralia.com/feature/mapping-gravitational-wave-universe
Very cool science that take pulsars and turn the Galaxy into a detector.
📸 C. Knox/Swinburne/OzGrav/SARAO
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1 in 100 billion! (well, so far ....)
There is one, and ONLY one of these systems we know about. It features two neutron stars, both pulsars. In even better news, both of these pulsar beams shine in our direction - so we can study the light of one as it passes through the powerful magnetic field of the other.
That's what Dr Marcus Lower from Swinburne University of Technology and his team did - they used the extremely sensitive MeerKAT telescope in South Africa to study the light, and polarization of one pulsar's beam as it passed through the magnetic field of the other.
This is extreme astrophysics at its best.
There is very much likely more double pulsars out there, but maybe only one beams at us, or none beam at us.
So, this is the only one we have so far ....
My latest for #SpaceAustralia
https://www.spaceaustralia.com/feature/unveiling-extreme-physics-galaxys-only-double-pulsar-system
📸M. Kramer/MPIfR
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👀👀👀
A new long-period radio transient! The population grows!
GLEAM-X J 0704−37 has a period of 2.9 hours (longest period yet detected!) and is linearly polarized ... and ... it likely has an identified companion (an M3 Dwarf).
Discovered in the archival low-frequency data from
the MWA.https://arxiv.org/abs/2408.15757
The reason I am excited about these is because we don't know what they are as yet! Pulsars have periods that are much smaller (faster rotators) than these things.
So we are seeing a new population of slower rotators emerging. Read more about it here: https://www.spaceaustralia.com/index.php/feature/population-strange-slow-rotating-astrophysical-objects-grows
Also chatted with @stilgherrian about this in the recent pod if you prefer to listen: https://stilgherrian.com/edict/00228/
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I think it is 'bout time we declared today (Aug 6) International Pulsars Day since today was the day that Dame Prof. Jocelyn Bell Burnell (aka Queen JBB) discovered them!
I write about #Pulsars a lot (as it is my field of study) so here are a few #SpaceAustralia links if you wish to read more about them:
https://www.spaceaustralia.com/feature/55-years-pulsar-science
https://www.spaceaustralia.com/index.php/feature/closing-earths-closest-millisecond-pulsar
https://www.spaceaustralia.com/index.php/news/science-talk-what-are-pulsar-planets
https://www.spaceaustralia.com/index.php/news/catching-spider-pulsar-act
I've also included a couple of graphics to celebrate (and in the next post too) that you are more than welcome to use with creditation.
