NASA spending measures are tucked inside the bill that can best be described as ugly, or at the very least ill-advised.

A new map shows hidden Martian rivers stretching thousands of miles, offering fresh evidence of a warm, wet ancient Mars.

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It comes after an aircraft bound for the Netherlands reportedly crashed after taking off.

A 54-pound (25-kilogram) rock. Estimated auction price: $2 million to $4 million. Why so expensive? It's the largest piece of ...