Solved cryptogram
The sun will swell into a red giant, shrug off its outer layers, and end the size of Earth.
Astronomy Facts, sourced to NASA Imagine the Universe.
Solve it yourself
This fact is a cryptogram here: 70 letters over 17 different ones, graded easy.
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What it means
Once the hydrogen in the core runs low the sun will expand enormously, swallowing the inner planets, and then drift its outer layers away as a glowing shell. What is left is the bare core: a white dwarf about as wide as the Earth and about as heavy as the sun it came from, with no fuel and nothing to do but cool. A teaspoon of that material would weigh several tons. It has a few billion years to run first.
The claim comes from NASA Imagine the Universe.
- SourceNASA Imagine the Universe
- CollectionAstronomy Facts
- Difficultyeasy
- Length70 letters, 17 of them different
Nearby in the collection
The facts either side of this one.
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- NASA Imagine the Universemedium, 72 letters
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