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.
Astronomers discuss future of Space VLBI in Dwingeloo

On 17-19 October 2022, JIVE and ASTRON co-hosted the 3rd Next Generation VLBI workshop (ngSVLBI-3) in Dwingeloo, the Netherlands. The hybrid workshop was attended both in-person and remotely by about ninety participants from all over the world.

LOFAR detects gigantic radio sources in the universe

An international research team has discovered four radio sources of up to ten million light years in size: megahalos.

People of ASTRON: Fanna Lautenbach

In People of ASTRON we share stories about the people at ASTRON. Who are the people behind the discoveries and innovations and also, who are the people that make sure that everything runs smoothly? Software engineer Fanna Lautenbach studied both astronomy and computer science and found her perfect working place here at ASTRON.

ERIS 2022 School inspires next generation of radio astronomers

Over 70 students from all over the world participated in the 9th European Radio Interferometry School (ERIS 2022) hosted by JIVE and ASTRON in Dwingeloo (the Netherlands) on 19-23 September 2022.

TOPIC-led consortium develops CSP-Low for SKA
People of ASTRON: Tom Kamphuis
ASTRON lanceert proeftuin voor ondernemers
ASTRON-led consortium working on SKAO
NenuFAR officially becomes a LOFAR super station
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SDCO group uitje

© Cees Bassa/Roberto Pizzo/Gemma Janssen

On Thursday 17 November, the SDCO went on their second group uitje of 2022.

First on the programme: a walk-with-horses event in the Dwingelderveld with coffee, tea and snacks half-way. Everyone got to ride in turn, which for some was the very first time on horseback. Zonnetij's Rocco and Flap happily (ab)used that, and increased their daily intake of grass and horse cookies significantly. Some follow-up leadership course with the horses may be on the list for next time!

After the exercising outside, the day was closed off with a very nice dinner at the recently opened restaurant Tante Ans in Ansen. Their Italian pizza chef was very quick to notice familiar language sounds from the diner room, and came from the kitchen to share the latest news from Italy. Some special versions of certain items on the menu were prepared: pomodori freschi were a must-add on Michiel's pizza, and the amazing Pizza Iacobelli may become a regular item on the menu.

All in all, it was very nice day. The group got to know each other better, some learnt new skills, and despite the very Dutch weather, everyone had great fun! Disclaimer: no horses were hurt in this effort (and no comment otherwise).

Telescope picture from left to right: Gemma, Rocco, Sander, Michiel, Hanno, Flap, Roberto, Manu, Marco, Vlad. Not in picture: Aras


Latest tweets

Daily image of the week: LDV gets busy
The LTA hosts about 60 PB of data, making it the largest astronomical data collection to date and an invaluable resource for science. The LDV aims to make these data available to the community.

Daily image of the week: ASTRON-director @astroTui get her hands dirty, assisting as a maintenance engineer.

There is still time to vote for LOFAR as your favourite REGIOSTARS-project on

Gigantic radio sources up to ten million light years in size discovered in the universe using the LOFAR radio telescope. Read more about this exciting result on the website of @HambObs