The Radio Pulse FRB 150807 (image) International Centre for Radio Astronomy Research Share Print E-Mail Caption The color shows the frequency of the waves, which is like the color of light. The brightness varies with frequency due to a process termed "scintillation," which is caused by the twinkling of the burst in the cosmic web. This scintillation is the fingerprint of turbulence in the cosmic web and tells us that web is very placid. Credit Credit: Dr. Vikram Ravi/Caltech and Dr. Ryan Shannon/ICRAR-Curtin/CSIRO Usage Restrictions With use of credit and non-commerical use. Share Print E-Mail 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.