PBS NOVA UFO - 搜索视频

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NOVA revolves around a simple premise: the world of science is exciting! For NOVA viewers, science means adventure and exploration--because from ants to aliens, this weekly documentary series probes the far reaches of earth, sea and stars. NOVA proves that science is neither secret lore nor sacred ritual but rather, at its heart, a lifelong ...

pbs.org2018年10月17日

Alien Planets

Alien solar system with seven planets discovered. All 7 are bigger than Earth

Alien solar system with seven planets discovered. All 7 are bigger than Earth

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Alien Planets Revealed

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Alien Planets Revealed

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