# Notes: Animated here is a real-life Crab pulse-train taken with Westerbork, as it appears to originate from the pulsar in the center of the Nebula. The sound is a partly-running-averaged and re-modulated Westerbork detection of the Crab Pulsar. Source files are the After Effects scenes, and sound and image files. # Credit Line: Joeri van Leeuwen / ASTRON / ESO # License CC-BY-AS