What the bloomin’ hell is a Gravastar? Are fast radio bursts like solar flares on steroids? Plus an interesting question on multiverses that can't be summed up in a short sentence. Izzie Clarke, Dr Becky Smethurst and Dr Robert Massey dive into The Supermassive Mailbox and take on your questions.

Keep sending in your wonderful ponderings. Email them to [email protected] or via Instagram @Supermassivepod

The Supermassive Podcast is a Boffin Media production. The producers are Izzie Clarke and Richard Hollingham.

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And keep adding to The Supermassive Mailbox with your pictures and questions for the team. Send them to [email protected] or follow them on Instagram, @SupermassivePod.

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

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