01 — TRANSIENTS
Long-period radio transients
Investigating mysterious, repeating radio bursts and their physical origins, including the link between long-period transients and accreting white dwarf binaries.
Read the Nature Astronomy paper ↗Radio astronomer & science communicator
Kovi Rose
Exploring the changing radio sky.
Sharing the science behind it.
I find and study unusual signals from the Universe, from ultracool dwarf stars to supernovae and long-period radio transients. Based at the Sydney Institute for Astronomy, University of Sydney and CSIRO Space & Astronomy.
The transient skyRadio / Time / Discovery
Signals across the spectrumIllustration
Sydney Institute for Astronomy · Sydney, AustraliaView my CV ↗
01 / Research
A Universe that won’t sit still.
My work combines observational radio astronomy with large-scale data analysis. I use widefield surveys and targeted follow-up observations to discover and understand sources that change over time.
From the observations
Tracing a repeating signal.
Radio bursts from ASKAP J1745-5051, the accreting white dwarf binary at the centre of our 2026 Nature Astronomy study.
Figure 3, Rose et al. (2026). CC BY 4.0. Shown without cropping.
02 — STELLAR MAGNETISM
Ultracool dwarfs & radio stars
Using polarised radio emission to find dwarf stars and probe their magnetic environments, including periodic radio pulses from the T8 dwarf WISE J0623.
Read the discovery paper ↗03 — EXPLODING STARS
The late lives of supernovae
Searching for supernovae that brighten again at radio wavelengths years after explosion, revealing the material surrounding the star and its history of mass loss.
Read the VAST study ↗Surveys & follow-up. My research draws on ASKAP’s VAST and RACS surveys, with observations from facilities including ATCA and MeerKAT. I also investigate linear polarisation variability in active galactic nuclei with CSIRO.
On the cover · August 2026
Nature Astronomy
Our white dwarf binary research features on the cover of Volume 10, Issue 8.
Image: Carl Knox (OzGrav / Swinburne) and Joshua Preston Pritchard (CSIRO). Cover design: Bethany Vukomanovic.
Explore the issue ↗02 / Publications
Selected publications
Discovery papers, survey science and collaborative studies of the radio sky.
27 peer-reviewed publications3 first-author papers590+ citations
Periodic Radio and X-ray Emission from an Accreting White Dwarf Binary
Rose, K., Pritchard, J., Murphy, T., et al. · Nature Astronomy, 10, 1166
First authorDetection of X-ray Emission from a Bright Long-Period Radio Transient
Wang, Z., et al. (including Rose, K.) · Nature, 642
Late-Time Supernovae Radio Re-brightening in the VAST Pilot Survey
Rose, K., Horesh, A., Murphy, T., Kaplan, D. L., et al. · MNRAS, 534
First authorThe Sydney Radio Star Catalogue: properties of radio stars at megahertz to gigahertz frequencies
Driessen, L. N., et al. (including Rose, K.) · PASA, 41, e084
A 12.4 day periodicity in a close binary system after a supernova
Chen, P., et al. (including Rose, K.) · Nature, 625
Periodic Radio Emission from the T8 Dwarf WISE J062309.94−045624.6
Rose, K., Pritchard, J., Murphy, T., Caleb, M., et al. · ApJL, 951, L43
First authorThe Rapid ASKAP Continuum Survey IV: continuum imaging at 1367.5 MHz and the first data release of RACS-mid
Duchesne, S. W., et al. (including Rose, K.) · PASA, 40, e034
03 / Media
Science, in conversation.
Selected writing, interviews and broadcasts bringing astronomy to a wider audience.
The Conversation · June 2026
Mysterious signals keep coming from space. We have found their ‘Rosetta stone’ ↗
The story behind our discovery of an accreting white dwarf binary.
Article · Written by KoviImage: Carl Knox (OzGrav / Swinburne) & Joshua Preston Pritchard (CSIRO), via The Conversation.
Astrophiz · July 2026
The Rosetta Stone in Space and Decoding Long Period Transients ↗
A conversation about the search for unusual radio signals and what they reveal.
Podcast · Guest interviewEpisode artwork: Astrophiz
Shirtloads of Science · June 2026
Solving a radio signal mystery with Dr Karl ↗
Discussing the discovery of the cosmic ‘Rosetta stone’ on Dr Karl’s podcast.
Podcast · Guest interviewEpisode artwork: Shirtloads of Science.
Cosmos · August 2025
The ghosts of dead stars ↗
Exploring the astronomical stories that continue after a star’s death. Read the saved issue, beginning on page 76.
Article · Written by KoviImage: ASKAP EMU team & Kovi Rose / Cosmos, issue 107.
ABC Radio National · May 2024
In search of brown dwarf stars ↗
An appearance on The Science Show about these faint and fascinating objects.
Radio · The Science ShowImage: CSIRO’s ASKAP, via ABC Radio National.
The Conversation · July 2023
A star barely hotter than a pizza oven ↗
How we detected radio waves from an exceptionally cool brown dwarf.
Article · Written by KoviComposite: Chuck Carter / Gregg Hallinan (Caltech) and Philippe Donn (Pexels), via The Conversation.
04 / Skills
From complex data to clear insight.
I build Python pipelines, analyse large-scale datasets and develop statistical models to find unusual signals. My work combines practical software development with reproducible research and clear communication.
Programming
Scientific Python & data engineering
Developing data reduction and analysis workflows, from exploratory Jupyter notebooks to automated pipelines.
Computing at scale
Parallel pipelines & HPC
Building and deploying highly parallelised workflows to process terabyte-scale datasets and search petabyte-scale astronomical surveys.
Analysis
Statistics & signal discovery
Using statistical modelling, time-series analysis and anomaly detection to identify, classify and characterise rare signals in complex data.
Software & communication
Reliable tools, accessible results
Contributing bug fixes and tests to open-source analysis tools, and translating technical findings into visualisations, reports and teaching.
In practice. My open-source work includes fixes and tests for Astropy, astrolabsoftware and rm-lite, alongside alpha- and beta-testing of radio astronomy pipelines.
Explore my work on GitHub ↗05 / Outreach
Curiosity is for everyone.
I share science through writing, podcasts, school visits, public talks and the occasional comedy stage — making space for questions, wonder and a good laugh.
Photos: Andrew Montoni-Tiller and Yotam Kiper / Mandelbaum House.
Science communication
Fun Fact Science
I founded and edit Fun Fact Science, sharing science with a community of around 75,000 followers through accessible stories and conversations.
Visit Fun Fact Science ↗Photo: Fun Fact Science · Ilan Ramon International Space Conference.
Podcasting
The Nerd and the Scientist
I co-host The Nerd and the Scientist with Benjamin Salles, exploring science and space with curiosity and humour. My podcasting also includes The Space Case Sarah Show.
Listen to the podcast ↗Artwork © Science, Actually.
Public talks & performance
From the pub to the stage
My public appearances include Pint of Science, Physics in the Pub, National Science Week, astronomy societies, and science comedy at the Sydney and Adelaide Fringe festivals.
Pint of Science ↗
Education & mentoring
Inspiring the next question
I visit schools, participate in Skype a Scientist, and mentor through the Science Extension Mentoring Program. I have taught physics, astronomy and data science, from school classrooms to university courses.
Science Extension program ↗Pictured with Mandelbaum House residents. Photos: Andrew Montoni-Tiller and Yotam Kiper / Mandelbaum House.