New research from Portland State University focused on identifying signs of life—biosignatures—in extreme environments here ...

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Tornadoes and violent storms have struck parts of the South and Midwest, killing at least one person, knocking down power ...

More mammals were living on the ground several million years before the mass extinction event that wiped out the dinosaurs, new research has revealed.

Before a discovery in a Panamanian rainforest, “it seemed impossible that lightning could be a good thing for the trees,” a ...