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On a dry lakebed in Nevada, a group of friends build the first scale model of the solar system with complete planetary orbits: a true illustration of our place in the universe.
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New discoveries reveal an astonishing supermassive black hole that was born during the earliest days of the cosmos, and finding out how this giant grew so large so quickly may help to explain the very formation of the universe itself.
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How is the universe put together? How is it built? And how does it actually work? Learn how nuclear fusion keeps them burning for billions of years and what powers our nearest star: the Sun. in Part 3 NASA's Parker Solar Probe investigates our Sun.
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