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The SNR for the pixel centred on PSR J0901−4046 for each 10 s integration an a 1-hour long ASKAP observation. Pink vertical lines indicate pulses above a 3.4σ significance (shown by the dashed red line), and grey vertical lines indicate expected pulse arrival times. Sub-second pulses from this ultra-long period pulsar are bright enough they can be detectable in a 10-second correlator integration time.

January 5, 2026

A radio source with a period of 75.88 s, suspected of being an ultra-long period pulsar, was discovered in 2020 with the MeerKAT radio telescope. Lenc et al. report the […]

CSIRO Season's Greetings card, 2025, featuring Murriyang, the Parkes radio-telescope

December 19, 2025

This year marks 25 years since the release of the movie “The Dish.” The film is loosely based on the role Murriyang, the Parkes radio telescope, along with NASA’s antenna […]

CSIRO Seasons's Greetings card, 2025. The artwork Eternal Wisdom, Infinite Innovation, is by Rachael Sarra, a proud First Nations woman and artist from Goreng Goreng Country.

December 18, 2025

CSIRO acknowledges and highlights Indigenous science and knowledge. In 2024 CSIRO launched its Stretch Reconciliation Action Plan (RAP) to continue to build and maintain strong relationships and partnerships. The RAP […]

ASKAP VAST images of the newly discovered pulsar in a binary system, showing the pulsar in an

December 17, 2025

Petrou et al. present the discovery of PSR J1728−4608, a new “redback spider” pulsar identified in ASKAP images from the EMU and VAST survey projects. Follow-up observations with Murriyang, the […]

Pictorial representation of ATNf user demographics, from the 2024/25 ATNf Annual Report.

December 16, 2025

The ATNF Annual Report for 2024/25 has now been published. The Annual Report includes articles on each of the ATNF telescopes, WA Observatory Site Entity, instrumentation and technology development, data archives, performance […]

EMUSE (the EMU search engine) uses machine learning and AI to help classify different types of radio sources into categories.

December 15, 2025

The latest issue of the ATNF News has just been published. This issue includes Notes from the ATNF leadership team, Learnings from the ATCA Science Day in April, an update […]

Front cover of the annual report 2024-2025

December 12, 2025

The ATNF Annual Report for 2024/25 has now been published. The Annual Report includes articles on each of the ATNF telescopes, WA Observatory Site Entity, instrumentation and technology development, data […]

A plot showing the relevant timescales of different classes of radio transients. Approximate limits of variability timescales are shown for different sources and different mechanisms. From Murphy and Kaplan 2025

December 11, 2025

Murphy and Kaplan have reviewed the current status of radio transient studies, focussing on image domain (or ‘slow’) transients, on timescales of seconds to years, and summarise the developments enabled […]

ASKAP Scheduling Block ID (SBID) 80000 is executed!

December 10, 2025

ASKAP recently crossed a milestone in the number of observations done since commissioning, with its “odometer” of scheduling blocks surpassing 80,000. A scheduling block is a unique observation identifier, which […]

An updated version of the transient phase space showing radio luminosity versus the product of timescale and observing frequency for different transient source classes, with the diagonal lines showing contours of brightness temperature. From Murphy and Kaplan, 2025

December 9, 2025

Astronomical objects that change rapidly give us insight into extreme environments, allowing us to identify new phenomena, test fundamental physics, and probe the Universe on all scales. Transient and variable […]

A spectrum from a single ATCA baseline showing the detection of 12.2 maser and thermal emission, made possible by the BIGCAT upgrade.

December 8, 2025

The ATCA has been off-line since November 18 in order for the second part of the BIGCAT upgrade to be undertaken — doubling the bandwidth able to be recorded in […]

The orbital phase coverage of radio observations of a new black-widow millisecond pulsar, PSR J1544−2555, obtained with MeerKAT, Murriyang/Parkes, Nançay, and Effelsberg in red (from Belmonte Diaz et al. 2025).

December 5, 2025

Millisecond pulsars (MSPs) differ from the regular pulsar population due to their fast spin periods and low spin-down rates MSPs are thought to be formed in binary systems through the […]


Welcome to the ATNF Daily Astronomy Picture (ADAP), brought to you by staff and users of the Australia Telescope National Facility (ATNF). Our aim is to present science and engineering results, research highlights from recent publications, technical updates, telescope pictures, conference summaries, etc.

Our site was inspired by the fabulous Astronomy Picture of the Day – @APOD and the ASTRON/Jive Daily Image – @dailyimage.

We welcome all ATNF users to submit an image related to our facilities (Parkes, ATCA, Mopra, ASKAP and LBA), together with a brief description and credits. Submissions can be emailed to the ADAP curator, (phil.edwards [at] csiro.au).

The ADAP was created in December 2014 by Baerbel Koribalski and Simon Johnston. Over 2500 ADAPs have now been published. Vince McIntyre, Nathan Pope, and Andrew O’Brien are acknowledged for their dedicated technical support. The ADAP is currently curated by Phil Edwards.