Trace ground-breaking discoveries that have transformed our picture of the universe over the past 50 years, shedding light on everything from exoplanets to supermassive black holes to the size and ultimate fate of the cosmos. And follow the teams trying to solve two of the biggest mysteries in cosmology today: What are dark matter and dark energy?
How big is the universe? Will it ever end? Why is so much of it made of mysterious dark matter and energy? See how mind-bending discoveries over the past 50 years have revolutionized our understanding of the universe.