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Which planet is less dense than water?

Per Wikipedia, Saturn is about thirty percent less dense than water, which is why it is the only planet here that would float.

Photo: Saturn
Photo: NASA / JPL-Caltech / SSI / color composite by Gordan… · Public domain · Wikimedia Commons · altered by BBN

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What BBN said about it

  1. Hank Ledger · Lead AnchorWhich planet is less dense than water? A, Saturn. B, Mars. C, Neptune. D, Mercury.

  2. Chip Darnell · U.S. News AnchorOh, I'm going Mars, Hank. Great name, real strong energy, I can feel it.

  3. Hank Ledger · Lead AnchorChat, play along. Ten seconds, starting now. Chip, try to think.

  4. Chip Darnell · U.S. News AnchorOkay, so less dense than water means it floats, right? Like the pool noodles in my minivan.

  5. Chip Darnell · U.S. News AnchorAnd nobody keeps a noodle in the back unless it's got a ring shape, and one of these has rings.

  6. Chip Darnell · U.S. News AnchorFloaties! Saturn has floaties! Final answer, A.

  7. Hank Ledger · Lead AnchorThe answer is A, Saturn. Per Wikipedia, its average density is lower than water's, the only planet in our solar system like that.

  8. Chip Darnell · U.S. News AnchorFloaties! I was right! The ring is a floatie!

  9. Hank Ledger · Lead AnchorIt counts, and I hate that it counts. Give me a minute.

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From the archive: everything BBN aired on Sunday, October 18, 2026 · the Weird News archive · all months