Hopefully launching today
https://esc.gsfc.nasa.gov/news/Small_Satellite_Makes_Big_Impact_on_Optical_Infusion
TBIRD- Laser communications demonstration, will transmit data at 200 Giga-bits per second from low earth orbit... its a cubesat not much bigger than a shoebox.
Live stream should be here: https://www.youtube.com/channel/UCtI0Hodo5o5dUb67FeUjDeA between 2:25pm and 3:25 eastern US time.