Meta CEO Mark Zuckerberg took to social media to share a selfie with actor Robert Downey Jr. The selfie was clicked at an event where Zuckerberg and the actor presented the Breakthrough Prize to Shankar Balasubramanian, David Klenerman and Pascal Mayer for their work to develop next-generation DNA sequencing. Zuckerberg and his wife Priscilla helped create the Breakthrough Prize.