Facebook CEO Mark Zuckerberg has announced that he will be broadcasting a live, 20-minute Earth-to-space phone call with three astronauts who are living and working onboard the International Space Station (ISS), and he's taking questions from the public.

NASA says the call will take place at 12:55 pm EDT Wednesday, June 1 (2:55am Thursday, June 2 AEST), and will involve British astronaut Tim Peake from the European Space Agency (ESA), and NASA astronauts Tim Kopra and Jeff Williams.

NASA is now calling for questions from the public, which you can submit via their Facebook page now. 

NASA has suggested questions like, "What is it like to live and work in microgravity orbiting the Earth?" and "What sorts of out-of-this-world science is underway in the space station's laboratories?" But come on, we can do better than that. 

Like, what does a sunrise look like from orbit? What do you do when you're not in space? (Hint: astronauts spend most of their time not in space) And what's with space lightning?

Okay, those were terrible, you guys will think of way better questions than that, but if you need more inspiration, check out these five-year-olds asking the incredibly handsome NASA astronaut and flight engineer Kjell Lindgren some great questions:

MVP goes to the kid who really struggles to get his question out about why the space station doesn't float away, and Lindgren gets one too for talking about improvising ISS cheeseburgers.

The call between Zuckerberg and the astronauts this week is of course to plug Facebook's new Facebook Live technology, but who cares about ulterior motives, we get live access to people living in space!

To make sure you don't miss out on this awesome opportunity, RSVP to NASA's event page, and tune in here for the live feed at 12:55pm EDT Wednesday, June 1 (2:55am Thursday, June 2 AEST).

If you can't watch the live broadcast - most of us Aussies will be asleep - you could always try your luck at contacting the ISS on your own like this guy did. Just make sure to ask them about aliens, I bet they've never heard that one before 😉