Definition of dayside
:the side of a planet in sunlight
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This will reveal both the signatures of atmospheric ingredients such as water, methane, and carbon dioxide, and also how heat flows from the planet’s dayside to its nightside.
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Its dayside would look orangeish, so hot that complex molecules can't stay together and only 2,000 degrees cooler than our sun.
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Forty-four minutes before closest approach, the radiometers began to scan Venus’s dayside.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'dayside.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use of dayside
1827
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