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At age 100, how the national parks grant 'breathing space'

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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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August 28, 2025 - PBS News Hour full episode
57:46
Season 2025 Episode 240
August 28, 2025 - PBS News Hour full episode
August 28, 2025 - PBS News Hour full episode
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57:46
Season 2025 Episode 239
August 27, 2025 - PBS News Hour full episode
August 27, 2025 - PBS News Hour full episode
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Season 2025 Episode 238
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August 26, 2025 - PBS News Hour full episode
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Season 2025 Episode 237
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Season 2025 Episode 236
August 24, 2025 - PBS News Weekend full episode
August 24, 2025 - PBS News Weekend full episode
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Season 2025 Episode 235
August 23, 2025 - PBS News Weekend full episode
August 23, 2025 - PBS News Weekend full episode
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Season 2025 Episode 234
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August 22, 2025 - PBS News Hour full episode
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Season 2025 Episode 233
August 21, 2025 - PBS News Hour full episode
August 21, 2025 - PBS News Hour full episode
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Season 2025 Episode 232
August 20, 2025 - PBS News Hour full episode
August 20, 2025 - PBS News Hour full episode
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Season 2025 Episode 231
August 19, 2025 - PBS News Hour full episode
August 19, 2025 - PBS News Hour full episode
August 18, 2025 - PBS News Hour full episode
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Season 2025 Episode 230
August 18, 2025 - PBS News Hour full episode
August 18, 2025 - PBS News Hour full episode
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Season 2025 Episode 229
August 17, 2025 - PBS News Weekend full episode
August 17, 2025 - PBS News Weekend full episode
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