Distributia
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Jemma RedgraveHerself - Narrator (voice)
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Alex FilippenkoHimself - Astronomical Observer
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Saul PerlmutterHimself - Lawrence Berkeley Lab
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Rocky KolbHimself - Astronomical Theorist
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Robert KirshnerHimself - Astronomical Observer
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Adam RiessHimself - University of California, Berkeley
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Michael TurnerHimself - Astronomical Theorist
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Peter NugentHimself - Lawrence Berkeley Lab