ASTRON is responsible for the operations of the 14 dish Westerbork Synthesis Radio Telescope (WSRT) and the Low Frequency Array (LOFAR) which consists of 100.000 small dipoles. ASTRON is also heavily involved in the design and development of the Square Kilometre Array (SKA) which, when built, will be the largest radio telescope in the world.


The Westerbork Synthesis Radio Telescope (WSRT) is a powerful radio telescope that uses a technique called "aperture synthesis" to generate radio images of the sky.


LOFAR (Low Frequency Array) is currently the largest radio telescope operating at the lowest frequencies that can be observed from Earth.

Square Kilometre Array

The Square Kilometre Array will be the most powerful radio telescope in the world. It will enable transformational science that will change our understanding of the Universe.

50 Years Westerbork Radio Observatory

A Continuing Journey to Discoveries and Innovations

History of WSRT

A graphical representation of WSRT's rich and exciting history.

Latest tweets

We've made a new video of our walking route the #Melkwegpad. via @YouTube

Daily image of the week: DR1. The Apertif imaging team has released science data from the first year of science operations of WSRT-Apertif, which can now be accessed by the scientific community.
#radioastronomy #DR1

In about half an hour, at 12.15, ASTRON researcher @AJBoonstra will be live in the Dutch radio programme 'Zoek het uit!' on @RTVDrenthe to answer some questions about the Westerbork synthesis radio telescope. You can tune in here:
#WSRT #radioastronomy

The latest Humans of ASTRON features Harish Vedantham, who was recently involved in the radio detection of a brown dwarf.
#humansofastron #radioastronomy #Elegast