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Hadean

  • a word derived from Hades.
    Hades

Example Sentences

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The Hadean Eon, which stretched from 4.6 to 4.0 billion years ago, represents one of the least understood periods in Earth's past.

From Science Daily Dec. 4, 2025

For many years, researchers believed that Earth remained in a "stagnant lid" state until at least the end of the Hadean.

From Science Daily Dec. 4, 2025

A handful of these zircons, clustering at an age of 4 billion years old, had very light oxygen isotope records compared with other Hadean zircons.

From Science Magazine Apr. 30, 2024

The oldest is the Hadean, which marks the period in which our planet first formed some 4.5 billion years ago, around the same time our moon formed as well.

From Salon Dec. 13, 2023

Meantime the moon through slips of driving cloud Came forth, and glanced athwart the seas a path Of dusky splendour, like the Hadean brows, When with Elysian passion they behold Persephone's complacent hueless cheeks.

From Poems — Volume 1 by George Meredith

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