This is one of those ideas that seem "to good to be true". Conventional photo-z techniques can be used to
derive distances to galaxies but the uncertainties are or the order of tens of megaparsecs (see let panel of the figure above).
By using the cosmic web as an additional constraint over existing photo-z estimates we can derive redshifts with an
equivalen accuracy of a couple of megaparsecs and even sub-megaparsecs! This paper explains why this makes sense and describes
the basic method.
The SDSS flythorugh was used for the SDSS data release 9. It went viral with almost one million view in two weeks!
This animation has been shown in documentaries by National Geographic, BBC (in production)
NHK Japan TV, The Adler Planetarium and a 3D classical music concert performed by the California Symphony.