The energy of X-rays is much higher than that of visible light. What can be seen with X-rays? How is the world depicted differently from the world seen by eyes? Recently a brilliant X-ray source called synchrotron radiation is highly developed, and innovative progress has been made in the field of X-ray image science. Momose laboratory develops and uses eyes that see X-ray phase, and advances the frontier of the X-ray image science with them. In concert with the development of next-generation X-ray sources, we aim at being a front runner in X-ray physics. We are touching on a new world beyond general X-ray knowledge. Currently we are developing novel techniques: (a) X-ray phase tomography, (b) X-ray Talbot interferometry, (c) phase topography, (d) soft X-ray Fourier spectroscopy, and so on, and their application study to materials science and medical imaging is also within our vision.