DEEP2 Redshift Survey
The DEEP2 Survey or DEEP2 was a two-phased Redshift survey of Redshift z ~ 1 galaxies. It used the twin 10 metre Keck telescopes in Hawaii to measure the spectra and redshifts of approximately 50,000 galaxies. It was the first project to study galaxies in the distant Universe with a spectral resolution similar to local surveys, such as the Sloan Digital Sky Survey. It was completed in 2013.