ISN prediction based on LSTM model. (IMAGE) Science China Press Caption (a) & (b) Predictions for SC 24 viewed in the long term and in recent solar cycles, respectively. (c) & (d) Predictions for SC 25 viewed in long term and in recent solar cycles, respectively. The black line represents the 13-month smoothed monthly ISN series, and the red line represents the predictions for the next 12 years, with the blue line depicting model predictions on the training set, the orange line on the validation set, and the green line on the test set. The numbers at the bottom of panel (b) & (d) indicate the indices of Solar Cycles. 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.