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A 900-Meter Clue Beneath The Granite: China’s Jinlin Crater Reshapes Our Understanding Of Holocene Impacts

For decades, scientists have assumed that the Holocene—the relatively quiet geological epoch...

Mammals On The Ground Before The Dinosaurs Were Gone

For decades, natural history books have taught that when a catastrophic asteroid struck Earth...

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Mark PierceRSS Feed of this column.

Retired geologist and earth scientist, specialising in ore deposits and isotope geochemistry. Before retirement, I led the Australian government's pre-competitive geoscience programs for minerals... Read More »

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Our planet’s origins and its ancient history has fascinated human beings since the dawn of civilization.

We have entered into a new age of space exploration, in which the commercialization of space travel has opened up the possibility that within a generation, space tourism will become a normal part of human existence. Yet, space travel does not come without a price.