In-depth articles

How did Neanderthals and other ancient humans learn to count?

How did Neanderthals and other ancient humans learn to count?

A bone found at an archaeological site may encode numerical information. And if that’s correct, anatomically modern humans might not have been alone in developing a system of numerical notations: Neanderthals might have begun to do so, too. Image: F. d’Errico

How ancient proteins are untangling humanity’s family tree

How ancient proteins are untangling humanity’s family tree

In the past few years we have learned to read the signals in other organic molecules that tend to survive longer than DNA and persist even in warm environments. Now, some think they could reveal how archaic humans like H. naledi evolved and interacted. Image: hape662

The Future of Lasers

The Future of Lasers

There is now a new kind of scientific machine on the horizon: a trimmed down particle accelerator that is small enough to fit on a tabletop. Diminutive they may be, but these table-top accelerators are still bursting with the power and versatility. Image: milkisprotein

Bacteria: The miracle microbes that could fix planet

Bacteria: The miracle microbes that could fix planet

As unlikely as it might sound, our future health and happiness might be secured by humble bacteria that can pull carbon dioxide from the air, grow greener food and clean up pollution. Image: NIAID

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