Longest canyon in the solar system reveals new secrets — Space photo of the week
Mars’Valles Marineris extends almost a quarter of the method around the world’s equator. (Image credit: NASA/JPL-Caltech/University of Arizona) FAST FACTS What it is: Sincerity Chasma, a big canyon on Mars…
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Hells Canyon caves reveal unexpected finding about America’s deepest gorge
Hells Canyon, America’s inmost canyon, most likely formed about 2.1 million years back, brand-new research study recommends. (Image credit: Matthew Morriss) The origin story of Hells Canyon, North America’s inmost…
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