To celebrate the 20th birthday of Lightsources.org, people working at synchrotron light sources were invited to post a selfie at a light source on social media on May 20 with the hashtag #LightSourceSelfieDay. A number of people from the ALS joined in. Here is a selection of pictures:
Some people took their selfie together with other people:
And even Berkeley Lab’s founder E.O. Lawrence joined the fun:
