Where did the building blocks of life come from? The answer lies far from home. Travel inside a giant star nearing the end of its life, witness stellar corpses colliding, and experience the quiet demise of a Sun-like star. From the oxygen we breathe to the iron in our blood, the silicon in Earth’s mantle to the uranium that warms our planet, we owe it all to the stars. Narrated by Diego Luna, ”Spark: The Universe in Us” explores how hundreds of millions of celestial events have forged the elements that make up the Solar System, Earth—and us!