Largest, oldest Maya monument suggests importance of communal work

From the ground, it's impossible to tell that the plateau underfoot is something extraordinary. But from the sky, with laser eyes, and beneath the surface, with radiocarbon dating, it's clear that it is the largest and oldest ...

Maya more warlike than previously thought

What was the role of warfare in Mayan civilization? New evidence from lake sediments around the abandoned city of Witzna indicates that extreme, total warfare was not just an aspect of the late Mayan period, leading to its ...

Are we alone? Setting some limits to our uniqueness

Are humans unique and alone in the vast universe? This question—summed up in the famous Drake equation—has for a half-century been one of the most intractable and uncertain in science.

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