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Astronomy and science popularizaer Carl Sagan famously declared “We are all starstuff.” He was referring to the discovery that much of the heavier elements in our body formed in the supernovas of dying stars. But after supernovas eject material out into the galaxy, how does that gas – and the rest of the interstellar medium – form into new stars, planets and ultimately us? To help answer that question Christopher McKee joins Justin Trottier at The Star Spot.