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PBS News Hour

Genetics, climate change, space mark the year in science

The year has been a major one for scientific milestones and research. As it comes to a close, we take a look back at some of the biggest science stories, for our weekly series the Leading Edge. Miles O’Brien and William Brangham discuss developments in the genetic engineering of humans, the realization of climate change’s immediate impact on weather and a new era of space exploration.

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March 2, 2026 - PBS News Hour full episode
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March 2, 2026 - PBS News Hour full episode
February 27, 2026 - PBS News Hour full episode
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February 27, 2026 - PBS News Hour full episode
February 26, 2026 - PBS News Hour full episode
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February 20, 2026 - PBS News Hour full episode
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February 19, 2026 - PBS News Hour full episode
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February 18, 2026 - PBS News Hour full episode
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February 17, 2026 - PBS News Hour full episode
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February 16, 2026 - PBS News Hour full episode
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February 13, 2026 - PBS News Hour full episode
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