Team discovers lull in Mars' giant impact history

From the earliest days of our solar system's history, collisions between astronomical objects have shaped the planets and changed the course of their evolution. Studying the early bombardment history of Mars, scientists at ...

Amazon River no younger than 9 million years, new study shows

Researchers from the University of Amsterdam (UvA) and the University of Brasilia (Brazil) have determined the age of the formation of the Amazon River at 9.4 to 9 million years ago (Ma) with data that convincingly refutes ...

Ancient peoples shaped the Amazon rainforest

An international team of ecologists and social scientists has shown in a new study published 3 March in the journal Science that tree species domesticated and distributed throughout the Amazon basin by indigenous peoples ...

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