Solar Winds, Crucial To Life On Earth, Decreasing

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Solar winds — invisible gas plasma emitted by the Sun — protect the solar system from cosmic rays that are hostile to terrestrial life. But new data from the Ulysses NASA probe indicate solar wind output is lower than has ever been previously documented.

David McComas, principal investigator for the Ulysses Solar Wind Observations Over the Poles of the Sun (SWOOPS) experiment, explains what this development might mean for the solar system.

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