The Kilo-Degree Survey

The VLT Survey Telescope at sunset at Paranal Observatory

KiDS, the Kilo-Degree Survey, is a large optical imaging survey in the Southern sky, designed to tackle some of the most fundamental questions of cosmology and galaxy formation of today. Using the VLT Survey Telescope (VST), located at the ESO Paranal Observatory, KiDS will map 1500 square degrees of the night sky in four broad-band filters (u, g, r, i).

Survey overview
Scientific goals



Postal address:

KiDS survey
attn: J. T. A. de Jong
Sterrewacht Leiden
P.O. Box 9513
NL-2300 RA Leiden
The Netherlands

KiDS-450 Weak lensing shear catalog released

3 Jan 2017

The weak lensing shear catalog for the KiDS-450 / DR3 data set, covering 454 KiDS survey tiles is now publicly available. This data set serves as the basis for the cosmic shear analysis presented in Hildebrandt & Viola et al. (2017) and various more scientific analyses currently in preparation. Available both via ESO and CADC, the catalog provides accurate shear measurements and photometric redshifts for over 15 million galaxies.

KiDS-450 Weak Lensing catalog

Dark matter may be smoother than expected

7 Dec 2016

Analysis of 450 square degrees of the Kilo-Degree Survey (KiDS), made with ESO's VLT Survey Telescope in Chile, suggests that dark matter may be less dense and more smoothly distributed throughout space than previously thought. An international team studied how the light from about 15 million distant galaxies was affected by the gravitational influence of matter on the largest scales in the Universe. The results appear to be in disagreement with earlier results from the Planck satellite. Press releases highlighting these results can be found via the Press releases page.


Dark matter map of KiDS survey region (region G15). Credit: Kilo-Degree Survey Collaboration/H. Hildebrandt & B. Giblin/ESO.

KiDS Data Release 3 available

10 Oct 2016

The third public data release (DR3) of KiDS is as now available. Adding 292 survey tiles to the previous releases, DR3 brings the total number of released tiles to 440. New features in the DR3 multi-band catalog, which covers the combined survey area of DR1, DR2 and DR3, are Gaussian Aperture and PSF (GAaP) photometry, survey photometric homogenization, and photometric redshifts. Further details, the release notes, and data access information can be found on the DR3 website.

KiDS DR3 website