Watch Mark Zuckerberg Call Astronauts in Space Today Via Facebook Live

NASA's Facebook Page
NASA will host a Facebook Live webcast today (June 1) with Facebook CEO Mark Zuckerberg calling the International Space Station. (Image credit: NASA)

Facebook's Mark Zuckerberg wants to reach Alpha Centauri, but first he will settle for a call with astronauts on the International Space Station today (June 1), which NASA will stream in real time using Facebook Live

The founder and CEO of the world's largest social network will call the space station at 12:55 p.m. EDT (1655 GMT) to speak with NASA astronauts Tim Kopra and Jeff Williams, and British astronaut Tim Peake of the European Space Agency. NASA will stream the cosmic conversation on its Facebook page here:

"This in-flight downlink will allow the global Facebook community to learn about what it is like to live and work in a microgravity environment, how we use that environment to conduct out-of-this-world science, and explore how this program will help prepare to send humans on a journey to Mars," Facebook representatives said in a statement.

Zuckerberg will spend about 20 minutes speaking with the space station astronauts, NASA officials said in an announcement. The public will be able to submit questions during the conversation, too, the officials added.

Today's Facebook Live call with the space station crew comes about a month after Zuckerberg, physicist Stephen Hawking and Russian millionaire scientist Yuri Milner launched a project called Breakthrough Starshot.

The $100 million project aims to build a prototype robotic spacecraft that would use light to sail to the Alpha Centauri star system (about 4 light-years away), reaching the destination in only 20 years. The technology for it is either available today or will be available shortly, the founders said, and would cost about as much as the largest scientific experiments.

The spacecraft will be small and simple – just a wafer-size chip propelled by a very thin sail. After leaving Earth on a mothership, the spacecraft will aim for Alpha Centauri by riding a laser light beam aimed from Earth. 

Follow Elizabeth Howell @howellspace, or @Spacedotcom. We're also on Facebook and Google+. Original article on

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Elizabeth Howell
Staff Writer, Spaceflight

Elizabeth Howell, Ph.D., is a staff writer in the spaceflight channel since 2022. She was contributing writer for (opens in new tab) for 10 years before that, since 2012. Elizabeth's reporting includes an exclusive with Office of the Vice-President of the United States, speaking several times with the International Space Station, witnessing five human spaceflight launches on two continents, working inside a spacesuit, and participating in a simulated Mars mission. Her latest book, "Why Am I Taller?", is co-written with astronaut Dave Williams. Elizabeth holds a Ph.D. and M.Sc. in Space Studies from the University of North Dakota, a Bachelor of Journalism from Canada's Carleton University and (soon) a Bachelor of History from Athabasca University. Elizabeth is also a post-secondary instructor in communications and science since 2015. Elizabeth first got interested in space after watching the movie Apollo 13 in 1996, and still wants to be an astronaut someday. Mastodon: