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Today's Colloquium: Booms, Burps & Bangs: The Dynamic Universe
© S. R. Kulkarni, Palomar Observatory That occasionally new sources ("Stella Nova") would pop up in the heavens was noted more than a thousand years ago. The earnest study of cosmic explosions began in...
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ASTRON Board chair visits Nancay
© ASTRON/Nancay A few weeks ago, the chairman of our board, Prof. Karel Gaemers found himself on holiday, and in the vicinity of Nancay Observatory. We were able to arrange for our good friend and...
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Anchor test setup at SKA South Africa Karoo site
© ASTRON During the holiday season, some of us sleep in tents and rely on tent pegs to hold up these light and nimble structures. It can be a frustrating experience to hammer down the pegs into a hard...
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It takes jet power to clean a galaxy!!
© ASTRON In a paper we publish today in Science, the first clear evidence is presented that radio jets from the supermassive black hole in the centre of a galaxy clears gas away from the galaxy....
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Almost 3D
© Rik ter Horst This spectacular "3D" image of the lunar surface was taken during rather good conditions in the early morning of August 27th. It is close to the terminator, so the low Sun casts...
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Water-skiing 2013
© ASTRON A sunny sky and a comfortable 28 degrees Celsius were the icing on the cake during the Water-ski event on September 5th, organized by the ASTRON/JIVE PV. Around 20 employees had gathered at...
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The class of '88
© - September 12 1988, 25 years ago, was the first day of the first European VLBI School in Castel San Pietro Terme, near Bologna. It proved an important starting point for a number of interesting...
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A polarised view of Exoplanets
© ESO ESO has made a great movie about the new SPHERE instrument for the VLT, and specifically the working principle of the polarimetric planetfinder ZIMPOL....
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WSRT, spotlight on!
© reijer@astron.nl Telescope 6 presents(*) her slender frame to the 106 participants of the ERIS 2013 interferometry school, who are enjoying a magical barbecue at the famous Westerbork Synthesis Radio...
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First-ever 4Gbps real-time fringes with the EVN
© European VLBI Network Yesterday, as part of the final review of the EC-sponsored NEXPReS programme, five telescopes of the European VLBI Network, equipped with the next generation of European built...
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Today's Colloquium: Supernova 1987A seen through ALMA's baby eyes
© HST / ALMA / Jon Marcaide Supernova 1987A is the nearest supernova seen in over 400 years and the only one with an identified progenitor star. Besides the debris, a triple ring system is visible. The...
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Summerstudent project: Ionospheric Faraday Rotation
© David Starkey, Maaijke Mevius, Vibor Jelic, Ger de Bruyn Polarized radio signals that propagate through the ionosphere are subject to Faraday rotation of the plane of polarization. For polarization...
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Flying over the Moon
© Rik ter HorstAnother "amateur" image of an interesting part of the Moon, taken from sea-level on the 27th of August with a homemade 250 mm F/15 Schmidt-Cassegrain telescope and an ASI120MM camera. A...
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FIfth European Radio Interferometry School
© R. Pizzo The Fifth European Radio Interferometry School (ERIS) was hosted by Astron and JIVE in Dwingeloo, the Netherlands, between 9-13 September 2013. The event was sponsored by RadioNet, the host...
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Claudio Maccone - new SETI Permanent Committee Chief.
© ASTRON Dr. Claudio Maccone, Technical Director of the International Academy of Astronautics (IAA) and a frequent visitor to ASTRON, was recently elected Chair of the IAA SETI (Search for...
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Unveiling the Invisible Universe!
© UNAWE The newest addition to UNAWE's extensive astronomy education repository is "The Invisible Universe", a compilation of activity guides created in collaboration with ASTRON to introduce primary...
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Thermal analysis of a SKA AA MID antenna in the desert
© Hiddo Hanenburg The mechanical design group of the ASTRON R&D department is designing housings for the AA antennas of the SKA MID frequency range. Since SKA will be located in a desert, the harsh...
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The first LOFAR operational observing Cycle
© Roberto Pizzo LOFAR has just completed Cycle 0, its first operational observing cycle. A total of 2850 successful observing hours were delivered, including 94% (2250 hours) of the total time awarded...
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Ghost Nebula
© Albert van Duin This reflection nebula in Cepheus is named the Ghost Nebula, a very appropriately named object for the Halloween season. Its official names are Sharpless3-136 or VandenBergh-141. It...
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Nature pulls a fast one!
© Jayanne English (U. of Manitoba), Judith Irwin (Queen's U.), Richard Rand (U. of New Mexico) and collaborators in the CHANG-ES consortium, NRAO VLA, NASA WISE & Spitzer missions, SDSS, and NOAO....
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