delone
@delone · Jul 22, 2026
The sky is blue during the day but becomes black at night.
During daylight, molecules in Earth’s atmosphere scatter blue light from the Sun more strongly than other visible colors, making the sky appear blue. At night, the Earth blocks direct sunlight from reaching our side of the atmosphere, so there is little light available to scatter and the sky appears black.
Claim source
The NASA source explains that the sky appears blue during the day due to scattering of blue light by atmosphere molecules, and appears black at night because there is no sunlight reaching that side of the atmosphere to scatter.
AI risk signal · Lower risk signal
90% signal confidence
The official NASA Space Place source clearly supports the claim by explaining the scientific reason why the sky is blue during the day and black at night due to scattering of sunlight by the atmosphere and lack thereof at night.
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Community verdict
Finalized trueCommunity voting data · 21 total votes
Server-published final score: 95%
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