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PBS News Hour

How a new space race could be harming the Earth’s atmosphere

According to data from the United Nations Office for Outer Space Affairs, 2023 was a record year for launching satellites, probes, landers and more into space. But scientists worry those plumes of exhaust trailing behind rockets could be scattering harmful pollutants into the pristine upper layers of the atmosphere. John Yang speaks with freelance science journalist Shannon Hall to learn more.

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