Facebook is gearing up to host a live chat with the International Space Station, chief executive Mark Zuckerberg has announced.

The live chat, which will be held with the astronauts on from Facebook HQ, will begin at 4.55pm NZT Thursday, June 2.

In Zuckerberg's post, he urged Facebook users to leave comments ready for the chat, adding he will try to ask many as he can.

The post has so far received 14,000 comments and 10,000 shares.