What happens if two diamond core stars collide? Will the Moon drift away from Earth? Why is there motion in the universe? And why we need a space AND time machine. Izzie, Dr Becky and Robert dive into The Supermassive Mailbox to answer your questions.
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Send us your astronomy attempts, questions (and nonsense!) to podcast@ras.ac.uk, on Instagram at @supermassivepod or post in The Supermassive Club.
The Supermassive Podcast is a Boffin Media production. The producers are Izzie Clarke and Richard Hollingham.