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ASTRON is responsible for the operations of the Westerbork Synthesis Radio Telescope (WSRT) and the Low Frequency Array (LOFAR).


The astronomical research at ASTRON is closely aligned with the strengths of our facilities LOFAR and WSRT-APERTIF.

Diversity & Sustainability

ASTRON is committed to achieving a fair, welcoming, and sustainable work environment for all.


Met onze radiotelescopen nemen wij de meest zwakke signalen uit het heelal waar. Daardoor zijn zij kwetsbaar voor elektromagnetische storing. Met het tijdig treffen van de juiste maatregelen kan storing worden voorkomen.

Wireless Data Lab

Draadloze techniek lijkt vanzelfsprekend, maar de ontwikkeling ervan gaat niet vanzelf. Daarom hebben we bij ASTRON een proeftuin ingericht; het Wireless Data Lab.

Making discoveries
in radio astronomy

ASTRON is the Netherlands Institute for Radio Astronomy, and is part of the Institutes organisation of NWO.

ASTRON has turned 75!

75 years ago today, SRZM (Stichting Radiostraling van Zon en Melkweg/Netherlands Foundation for Radio Astronomy) was founded. This organization would later become ASTRON.

Published by the editorial team, 23 April 2024

ASTRON launches database of female experts

Today marks International Women’s Day. This year’s theme is ‘Inspire Inclusion’.

Published by the editorial team, 8 March 2024

LOFAR ERIC: Distributed Research Infrastructure for European Astronomical Research Launched

LOFAR ERIC (European Research Infrastructure Consortium) has been officially launched at its first Council meeting today. The world-leading LOFAR (LOw Frequency ARray) Distributed Research Infrastructure has already revolutionised low-frequency radio astronomy research, resulting in an avalanche of scientific publications in the past decade. LOFAR ERIC is now a single legal entity across the European Union. The LOFAR ERIC statutory seat is in Dwingeloo, the Netherlands, hosted by NWO-I/ASTRON (Netherlands Institute for Radio Astronomy; the original designer of LOFAR).

Published by the editorial team, 22 January 2024

Telescope quartet reveals surprising statistics of cosmic flashes

Scientists led by Chalmers astronomer Franz Kirsten have studied a famous source of repeating fast radio bursts – a still unexplained cosmic phenomenon. Comparing with earlier measurements, the scientists draw a conclusion with far-reaching consequences: any source of fast radio bursts will repeat, if watched long enough and carefully enough. The research team, a unique collaboration between professional and amateur radio astronomers, used four telescopes in northern Europe, amongst which ASTRON’s Westerbork Synthesis Radio Telescope.

Published by the editorial team, 4 January 2024

ASTRON celebrates its 75th birthday!

© ASTRON/Studio Eigen Merk

On 23 April 1949 - 75 years ago -, the precursor to ASTRON, known as SRZM (Netherlands Foundation for Radio Astronomy), was established officially. Prof. Jan Oort served as the chair of the Board from its inception until his retirement in 1970. SRZM was established to lay the groundwork for creating, building, and managing the Dwingeloo Telescope.

Since then, ASTRON has dedicated its 75 years of existence to making discoveries in radio astronomy happen. We're proud of:

- 75 years of astronomical discoveries like the Hydrogen line, Fast Radio Bursts (FRBs), dark matter, pulsars and much more;

- 75 years of technological innovations like phased array feed technology, supercomputers and correlators to crunch all our observation data, a computer board that can process one petabit of data per second and much more;

- 75 years of collaboration and innovation between engineers, astronomers and business support staff to push the boundaries of knowledge;

- 75 years of building innovative telescopes: the Dwingeloo Telescope, Westerbork Synthesis Radio Telescope (WSRT) and Low Frequency Array (LOFAR);

- 75 years of collaborating with partner institutes to build groundbreaking instruments for radio astronomy, like the Square Kilometre Array (SKA) and James Clerk Maxwell Telescope (JCMT);

- 75 years of inspiring (new) students in science, technology, engineering and mathematics (STEM);

- 75 years of collaborating with (regional) industry and government to make our knowledge accessible;

- 75 years of working in a national park, one of the most beautiful office environments one could wish for.

It has been 75 years of imagining the impossible, and then together making those dreams come true. We are grateful to all the people who have helped us to make discoveries in radio astronomy happen; past, present, and future.

We are part of science, we are part of nature, we are part of the community we work in. We are ASTRON, be part of us.

ASTRON daily image.

Toegepaste RF-techniek

Mon 13 May 2024 - Thu 16 May 2024

De cursus Toegepaste RF-techniek bestaat uit een theoriegedeelte (75%) en hands-on sessies in ons eigen lab (25%).
Deelnemers aan deze cursus dienen een hbo werk- en denkniveau te hebben. De deelnemer kent de basisbegrippen van elektronica. Parate kennis van wiskundige concepten is niet vereist, maar komt wel aan de orde bij de transmissielijntheorie. In de cursus wordt ook complexe rekenwijze toegepast.


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