Friday, Jul 24, 2026 The claims desk. Receipts included. POWERED BY LENZ ↗
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SCIENCE

The Claim

There are more stars in the Milky Way galaxy than there are trees on Earth.

Verified by Lenz ·

The Short Version

This claim is false — it gets the comparison backwards. NASA and ESA estimate the Milky Way contains roughly 100–400 billion stars, while a landmark 2015 Yale/Nature study estimates approximately 3 trillion trees on Earth. Even using the highest credible star estimates, trees outnumber Milky Way stars by a factor of roughly 7 to 30. The popular belief that stars vastly outnumber trees is a common misconception.

Caveats

  • The Milky Way star count (~100–400 billion) is far below Earth's tree count (~3 trillion); the claim reverses the actual relationship.
  • Upper-end galaxy mass estimates cannot be directly converted to star counts because most galactic mass is dark matter, gas, and dust — not stars.
  • Both figures carry some uncertainty, but not nearly enough to flip the comparison under any mainstream scientific estimate.

The Receipts

  1. Counting the world's trees

    Yale School of Forestry & Environmental Studies

  2. Milky Way Galaxy - Imagine the Universe!

    NASA

  3. How Many Stars Are in The Milky Way? More Than You Can Imagine | Steward Observatory

    Steward Observatory

  4. ESA - How many stars are there in the Universe?

    European Space Agency

  5. How Many Stars Are in The Milky Way? More Than You Can Imagine | Discover Magazine

    Discover Magazine

  6. How Many Stars Are in the Milky Way?

    Space.com

  7. How Many Suns Exist In The Milky Way? It's Complicated

    Discover Magazine

  8. How Many Trees Are in the World? - World Population Review

    World Population Review

  9. How Many Stars in the Milky Way Galaxy - Oreate AI Blog

    Oreate AI Blog

  10. How Many Trees Are There in the World - Oreate AI Blog

    Oreate AI Blog

+ 6 more sources — see the full list on Lenz

Filed Under

EarthMilky Way galaxy

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