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Did the Sun Once Have a Twin Star?

šŸ’” The Answer

  • The Nemesis hypothesis proposes the Sun was part of a binary system.
  • A distant companion star could explain periodic extinction events on Earth.
  • Most stars in the Milky Way are thought to form in binary pairs.
  • Direct evidence for a solar twin remains elusive, but the idea persists.

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šŸ“… On This Day — September 133 events →

1922 — The final act of the Greco-Turkish War, the Great Fire of Smyrna, commences.

1922 — The final act of the Greco-Turkish War, the Great Fire of Smyrna, commences.

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