Exposed sediments reveal decades of Lake Powell history

Usually when a geologist walks up to a sedimentary rock outcrop and starts scanning the layers of sand, mud and silt now turned to rock, they're looking through millions of years of deep time to deduce what happened in that ...

Early human ancestors one million years older than thought

The fossils of our earliest ancestors found in South Africa are a million years older than previously thought, meaning they walked the Earth around the same time as their East African relatives like the famous "Lucy", according ...

Cracking the mystery of nature's toughest material

Nacre, the rainbow-sheened material that lines the insides of mussel and other mollusk shells, is known as nature's toughest material. Now, a team of researchers led by the University of Michigan has revealed precisely how ...

Unexpected fish and squid found in the Central Arctic Ocean

Single individuals of Atlantic cod and squid occur much further north than previously expected. Scientists participating in the international MOSAiC expedition with research icebreaker Polarstern have found fish and squid ...

Is the ozone layer on the road to recovery?

(Phys.org)—Satellites show that the recent ozone hole over Antarctica was the smallest seen in the past decade. Long-term observations also reveal that Earth's ozone has been strengthening following international agreements ...

Environmental concerns grow as space tourism lifts off

After years of waiting, Richard Branson's journey to space this month on a Virgin Galactic vessel was supposed to be a triumphant homecoming. Instead, the jaunt attracted significant criticism—about its carbon footprint.

Graphene hydraulic press delivers new 2D materials

A graphene hydraulic 'nano-press' has proved to be capable of creating new two-dimensional materials by exerting huge pressure on compounds sealed between layers of graphene.

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