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The two Voyager spacecraft have traveled farther than any human-made object in history. As they reach interstellar space, experts explore their most astonishing discoveries and how their extended operation has transformed into the ultimate mission.
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Discoveries about interstellar space, the space between the universe's stars, reveal that it's not empty and unremarkable as previously thought, but filled with weird objects and strange phenomena that might hold the darkest secrets of the cosmos.
S7E3 • How the Universe Works • 2019 • Astronomy
In summer 1969, Apollo 11 succeeded as the first manned mission to land on the moon. The next challenge was to design and build the first exploration vehicle. It had to allow astronauts to explore the moon's surface, but it had to fit in just a meter square space!
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The first close-up images of Pluto revealed unimaginable secrets of this mysterious frozen world. Now, scientists investigate if Pluto is home to a warm ocean of liquid water beneath its surface, and whether this underground ocean could harbour life.
S5E3 • How the Universe Works • 2016 • Astronomy
Brian Cox considers the nature of time. He explores the cycles of time that define the lives of humans on Earth, and compares them to the cycles of time on a cosmic scale.
S1E1 • Wonders of the Universe • Astronomy
This episode documents how gravity has an effect across the universe, and how the relatively weak force creates an orbit. We also see how a neutron star's gravity works. Finally, there is a look back at how research on gravity has enabled us to better understand the cosmos.
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