Mark Zuckerberg is doing a Facebook Live with space station astronauts

Facebook CEO Mark Zuckerberg has already done a handful of Facebook Live broadcasts, talking about Facebook and its initiatives as well as interviewing members of the company. 

For his next Facebook Live, however, Zuckerberg is doing something a little more ambitious.

On Wednesday, Zuckerberg will call the International Space Station to speak with NASA astronauts Tim Kopra and Jeff Williams and British astronaut Tim Peake. 

The call will start at 12:55 p.m. ET and last about 20 minutes, according to . It will also be hosted on the space agency's Facebook page. Read more...