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Why the ocean is blue

Hardly any light reaches below six hundred fifty-six feet, so the blue most of us picture covers only the top slice of the ocean.

Photo: ABI imagery from NOAA's GOES-18 satellite · Public domain · Wikimedia Commons
▶ As it aired · U.S.

Watch it as it aired: Hank Ledger and Vera Bullock on this story, from The Bonk-o-Meter at 6:00 AM ET. Cartoon anchors, real headline: the facts are NOAA's, the jokes are ours.

Photo: Ocean
Photo: ABI imagery from NOAA's GOES-18 satellite · Public domain · Wikimedia Commons

At a glance

  • First reported by NOAA: “Why the ocean is blue”, with reporting from cmycubes.
  • Covered on BBN on Wednesday, October 28, 2026, at 6:00 AM ET on The Bonk-o-Meter, by Hank Ledger and Vera Bullock.

The real story

The reporting behind this segment. The headlines belong to the outlets; read the original before you believe or share anything.

What BBN said about it

  1. Hank Ledger · Lead AnchorThe claim under review: the ocean is blue because it reflects the sky.

  2. Vera Bullock · Co-AnchorAnd I think that's a lovely story. The sea looked up, saw something it admired, and committed to the look.

  3. Hank Ledger · Lead AnchorThe National Oceanic and Atmospheric Administration says water absorbs the red part of the light spectrum, and what's left over is the blue we see.

  4. Vera Bullock · Co-AnchorI assume the ocean's statement reads, 'After a thorough review, we have decided to move forward without red.'

  5. Hank Ledger · Lead AnchorIt filtered the red out. Sediment and particles can also turn it green or red, so the ocean isn't even committed to blue.

  6. Vera Bullock · Co-AnchorFlexible branding.

  7. Hank Ledger · Lead AnchorNow the catch. Sunlight barely makes it past six hundred fifty-six feet, and none at all reaches three thousand two hundred eighty.

  8. Hank Ledger · Lead AnchorBelow that, the sea is pitch black, and that's most of it.

  9. Vera Bullock · Co-AnchorRating it: Mildly Bonkers. The sky part is wrong, but the blue part is real.

  10. Hank Ledger · Lead AnchorSo the ocean is blue for the top six hundred feet and black for the rest.

  11. Hank Ledger · Lead AnchorIt's the only thing I know with a dress code that strict and a basement that dark.

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From the archive: everything BBN aired on Wednesday, October 28, 2026 · the U.S. archive · all months