In this color picture, blue is the Hubble Space Telescope z-band image, green is our TENIS J-band image, and red is TENIS Ks-band image. The square is the famous Hubble Ultra Deep Field. The total area covered by our TENIS survey is roughly 12× larger than what is shown here. (Hsieh et al. 2012, ApJS: 203(2), 23-46)