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What makes a star a star? When will Betelgeuse explode? Amanda explores what "any day now" means in astronomy and Alan starts measuring mass in millions of marsupials.
Our Solar System started out as a chaotic Primordial Pancake. Now it hosts the eight planets we know and love, plus poor old Pluto, plus some other stuff. Like asteroids with their own moons.
It’s drifting away from Earth at the same rate that your fingernails grow, but the Moon is still our closest neighbour - so close, that we’ve left quite a lot of litter on its surface…
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