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   Fraser Cain (fraser@m.universetoday.com)'s status on Tuesday, 11-Jun-2024 05:34:46 JST Fraser Cain

   Earth's climate has changed many times over its long history, thanks to everything from volcanic eruptions to carbon dioxide levels. However, a new paper suggests that the Earth's location in the Milky Way might also affect its climate and habitability. About two million years ago, the solar system passed through an interstellar cloud so dense that it might have interfered with the Sun's solar wind, exposing the planet to more radiation and depleting the ozone.

   https://www.nature.com/articles/s41550-024-02279-8