 Lehnert states that this discovery is not "the limit, perhaps not even that close to it".At that time, Trenti said redshift 8.6 would likely to be as high as we can reach with the current generation of Earth-bound telescopes, but that with Hubble, "it might be possible to find some galaxies up to redshift 10".Candidates with higher redshifts than UDFy-38135539's have been reported subsequently, but not yet confirmed with light spectrum instruments., for example UDFj-39546284 and MACS0647-JD.