The promotional image of FASHI (IMAGE) Science China Press Caption The promotional image shows the project about the Five-hundred-meter Aperture Spherical radio Telescope (FAST) All Sky HI survey (FASHI). As the image illustrates, the powerful FAST telescope is observing distant galaxies, recording their HI emission, and revealing the detailed physical properties of the galaxies. Credit ©Science China Press Usage Restrictions Use with credit. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.