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PBS News Hour

Four light years away, a planet may be hospitable to life

Scientists have discovered a potentially habitable new world, a mere four light years away from Earth. They call the planet “Proxima b,” and it may feature characteristics that are just right for human life. Nonetheless, it has some major differences from Earth -- a year on the planet lasts only 11 days. Hari Sreenivasan speaks with science correspondent Miles O'Brien for background.
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February 27, 2026 - PBS News Hour full episode
57:46
Season 2026 Episode 46
February 27, 2026 - PBS News Hour full episode
February 27, 2026 - PBS News Hour full episode
February 26, 2026 - PBS News Hour full episode
57:46
Season 2026 Episode 45
February 26, 2026 - PBS News Hour full episode
February 26, 2026 - PBS News Hour full episode
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Season 2026 Episode 44
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February 25, 2026 - PBS News Hour full episode
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Season 2026 Episode 43
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February 24, 2026 - PBS News Hour full episode
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Season 2026 Episode 42
February 23, 2026 - PBS News Hour full episode
February 23, 2026 - PBS News Hour full episode
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Season 2026 Episode 41
February 20, 2026 - PBS News Hour full episode
February 20, 2026 - PBS News Hour full episode
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Season 2026 Episode 40
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February 19, 2026 - PBS News Hour full episode
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Season 2026 Episode 39
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February 18, 2026 - PBS News Hour full episode
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Season 2026 Episode 38
February 17, 2026 - PBS News Hour full episode
February 17, 2026 - PBS News Hour full episode
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Season 2026 Episode 37
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February 16, 2026 - PBS News Hour full episode
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Season 2026 Episode 36
February 13, 2026 - PBS News Hour full episode
February 13, 2026 - PBS News Hour full episode
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Season 2026 Episode 35
February 12, 2026 - PBS News Hour full episode
February 12, 2026 - PBS News Hour full episode
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