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Researchers identify ‘Mega-Earth,’ prompting questions of how it formed - NewsNation
Thursday, August 20, 2026
The exoplanet is 170 million years old and weighs more than 23 times Earth's mass while being just 2 1/2 times its size.
(NewsNation) University of Wisconsin-Madison researchers have identified a unique planet outside our solar system known as a “Mega-Earth,” challenging traditional notions of how planets form. The ex…
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