Animation of the MICROSCOPE Results (VIDEO) American Physical Society This video is under embargo. Please login to access this video. Caption In new studies published in Physical Review Letters and a special issue of Classical and Quantum Gravity on September 14, a team of researchers present the most precise test yet of the Weak Equivalence Principle, a key component of the theory of general relativity. The report describes the final results from the MICROSCOPE mission, which tested the principle by measuring accelerations of free-falling objects in a satellite orbiting Earth. The team found that the accelerations of pairs of objects differed by no more than about one part in 10^15, ruling out any violations of the Weak Equivalence Principle or deviations from the current understanding of general relativity at that level. Credit (c) ONERA Usage Restrictions News media may use this video with attribution to promote the final results of the Microscope Mission. 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.