Beijing Fangshan Satellite Laser Observatory (IMAGE) American Institute of Physics Caption Beijing Fangshan Satellite Laser Observatory. Credit Beijing Fangshan Satellite Laser Observatory Usage Restrictions EMBARGOED for release until 11:00 a.m. Eastern (U.S.) on December 24, 2019 and may only be used in reporting for this press release. License Licensed 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.