We’ve measured the size of Venus’s planetary core for the first time

Venus has a core about the same size as Earth’s

Olekcii Mach/Alamy

Venus has a core that is approximately 7000 kilometres in diameter – about the same size as Earth’s – according to the first observation-based estimate.

Studying Venus is notoriously difficult owing to its thick atmosphere, which hides the surface. As such, radar and other specialist observation techniques are required to probe beneath its abundant clouds.

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Jean-Luc Margot at the University of California, Los…



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