Solved cryptogram
Venus is hotter at the surface than Mercury, even though it orbits much farther from the sun.
Astronomy Facts, sourced to NASA.
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What it means
Distance from the sun is not what sets a planet's temperature. Venus is wrapped in a dense carbon dioxide atmosphere that lets sunlight in and will not let the heat back out, and the runaway greenhouse effect that results holds the surface at around four hundred and sixty degrees Celsius. That is hot enough to melt lead, and it is roughly the same everywhere, day side and night side alike.
The claim comes from NASA.
- SourceNASA
- CollectionAstronomy Facts
- Difficultymedium
- Length75 letters, 17 unique
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