reconstruction of the f(R) gravity action (IMAGE) Science China Press Caption The reconstructed F(R), where F(R)=f(R)-R, and with R0 the current value. The black curve denotes the mean value, while the light blue shaded zones indicate the allowed regions at 1σ confidence level. 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.