If black holes are so dense, how can gamma rays jet shoot out from it? At what point in space does our sun become invisible to the naked eye? And a question about CubeSats, black holes and detecting alien civilisations... It time for Izzie Clarke, Dr Becky Smethurst and Dr Robert Massey to take on your questions!
Got a question to add to The Supermassive Mailbox? Email it to podcast@ras.ac.uk or message us on Instagram, @SupermassivePod. There's no such thing as a silly question. In fact, the sillier, the better!
The Supermassive Podcast is a Boffin Media production. The producers are Izzie Clarke and Richard Hollingham.
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