Qualla: Giant Ukrainian Radio Telescope

Giant Ukrainian Radio Telescope: Introduction

Mon, 13 Jul 2026 00:00:00 GMT

Photo credit Serge Yerin (YeS), CC BY 4.0. There is nothing to see here that looks like a telescope. No white dish tilts toward the sky, no dome swivels on a hilltop. Instead, rows of thin copper rods stand in neat grids barely higher than your knee, spread across the fields of the S. Y. Braude Radio Astronomical Observatory in Kharkiv Oblast. To the eye it could be a strange kind of vineyard. But these crossed dipoles are tuned to the lowest notes the cosmos plays, radio waves at 8 to 80 megahertz that a curved metal dish could never gather. The instrument is called GURT, the Giant Ukrainian Radio Telescope, and it is patiently teaching itself to hear the whole sky at once.

Image: Serge Yerin (YeS) | CC BY 4.0

Giant Ukrainian Radio Telescope: Listening at the Bottom of the Spectrum

Mon, 13 Jul 2026 00:00:00 GMT

Photo credit Tschubby, CC BY-SA 3.0. Most famous observatories chase the high frequencies, where a parabolic dish can focus faint signals to a sharp point. GURT works at the opposite extreme, in the decametre range where wavelengths stretch for meters and no reasonable dish could ever be built large enough. The solu...

Image: Tschubby | CC BY-SA 3.0

Giant Ukrainian Radio Telescope: A Sky Full of Static With Meaning

Mon, 13 Jul 2026 00:00:00 GMT

Photo credit YeS (Serge Yerin), CC BY-SA 4.0. The low-frequency universe is loud in ways the human world rarely notices. GURT's subarrays have already caught the crackle of solar radio bursts, the strange decametric radiation Jupiter emits when its moon Io threads through the planet's magnetic field, the shimmer of Earth's o...

Image: YeS (Serge Yerin) | CC BY-SA 4.0

Giant Ukrainian Radio Telescope: The Elder Beside the Newcomer

Mon, 13 Jul 2026 00:00:00 GMT

Photo credit YeS (Serge Yerin), CC BY-SA 4.0. GURT does not stand alone on this ground. Sharing the observatory is the UTR-2, a colossal T-shaped array of thousands of dipoles that has been one of the world's premier low-frequency instruments since the Soviet era. GURT was conceived as its extension and its successor, and th...

Image: YeS (Serge Yerin) | CC BY-SA 4.0