NewScientist – Cosmic cloud exposed Earth to interstellar space 3 million years ago

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Cosmic cloud exposed Earth to interstellar space 3 million years ago

Cosmic cloud exposed Earth to interstellar space 3 million years ago

The protective bubble around the sun retreated dramatically after colliding with a freezing interstellar cloud, leaving much of the solar system exposed to radiation that may have shaped our evolution, a study suggests.

Between 2 million and 3 million years ago, the solar system encountered turbulence on a galactic scale, colliding with a dense interstellar cloud that may have altered both the climate and evolution on Earth.

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https://www.newscientist.com/article/2434831-cosmic-cloud-exposed-earth-to-interstellar-space-3-million-years-ago/

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