

Did Gravity Wipe Out The Dinosaurs?
How do we calculate a black hole's event horizon? Does Mercury's tail impact Earth? Can we name a planet Rupert? And did gravity wipe out the dinosaurs? Izzie Clarke & Dr Becky Smethurst dive into the rather whimsical Supermassive Mailbox to answer your questions. Want to name an Exoworld? Here's the IAU website to…
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