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How Long is a Day on Venus? We Finally Know the Exact Answer

4 May 2021, 18:41 UTC
How Long is a Day on Venus? We Finally Know the Exact Answer NASA/JPL-Caltech

Venus, aka. Earth’s “Sister Planet,” has always been shrouded in mystery for astronomers. Despite being planet Earth’s closest neighbor, scientists remained ignorant of what Venus’ surface even looked like for well into the 20th century, thanks to its incredibly dense and opaque atmosphere. Even in the age of robotic space exploration, its surface has been all but inaccessible to probes and landers.

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