Are gravitational waves destructive?  Will the universe ever expand faster than the speed of light? Should we only send robots to space? This month, Izzie Clarke, Dr Becky Smethurst and Dr Robert Massey take on the BIG questions in The Supermassive Mailbox.



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The Supermassive Podcast from the Royal Astronomical Society is a Boffin Media Production. The producers are Izzie Clarke and Richard Hollingham.