Less than a week after its inauguration on January 17, 2019, the prototype Schwarzschild-Couder telescope (pSCT), a telescope design proposed for the Cherenkov Telescope Array (CTA), successfully detected its first Cherenkov light on January 23 at the Fred Lawrence Whipple Observatory in Arizona.
Other multimedia resources available:
Video by UW-Madison: https://www.youtube.com/watch?v=tRztsySYeUI
Video by WIPAC: https://vimeo.com/312137754
Videos of events recorded during first light night: https://vimeo.com/album/5758583