Can wobbly planets have more than two solstices? Are we earthlings receding from the sun and the other planets? What is dark flow and why is it controversial? When stars die, is their energy lost forever?
Send your questions to podcast@ras.ac.uk or find us 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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