Astrophysicist Katie Mack talks the end of the universe tonight! Here's how to watch live.

Astrophysicist and science communicator Katie Mack will talk about the end of the universe during a webcast on May 6, 2020. (Image credit: Perimeter Institute for Theoretical Physics)

Astrophysicist Katie Mack will talk about the end of the universe today (May 6), and you can follow the discussion live — and even ask her a question, if you'd like.

Mack, an assistant professor at North Carolina State University and a popular science communicator, will participate in a webcast conversation this evening at 7 p.m. EDT (2300 GMT) hosted by the Perimeter Institute for Theoretical Physics in Canada. You can watch it live here at Space.com, courtesy of the Perimeter Institute, or directly via the Institute.

"Mack, who holds a Simons Emmy Noether Visiting Fellowship at Perimeter, will give viewers a sneak peek at her upcoming book, 'The End of Everything (Astrophysically Speaking).' She will then participate in a live 'ask me anything' session, answering questions submitted via social media using the hashtag #piLIVE," Perimeter Institute representatives wrote in a description of the event.

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Mike Wall is the author of "Out There" (Grand Central Publishing, 2018; illustrated by Karl Tate), a book about the search for alien life. Follow him on Twitter @michaeldwall. Follow us on Twitter @Spacedotcom or Facebook.

Michael Wall is a Senior Space Writer with Space.com and joined the team in 2010. He primarily covers exoplanets, spaceflight and military space, but has been known to dabble in the space art beat. His book about the search for alien life, "Out There," was published on Nov. 13, 2018. Before becoming a science writer, Michael worked as a herpetologist and wildlife biologist. He has a Ph.D. in evolutionary biology from the University of Sydney, Australia, a bachelor's degree from the University of Arizona, and a graduate certificate in science writing from the University of California, Santa Cruz. To find out what his latest project is, you can follow Michael on Twitter.