In 1869, John Wesley Powell was studying layers of rock in the Grand Canyon when he noticed an unconformity in the layers. Around a billion years were missing, and the problem turned out to be global.

With the upcoming Artemis II lunar mission, we thought it would be fun to explore some of the foods astronauts have eaten ...

Australia’s history did not begin with colonization. Tens of thousands of years before empires rose elsewhere, Aboriginal Australians were living, adapting, and building culture across the continent.

F or the first time, chitin has been identified in a Cambrian Period trilobite. The unexpected discovery could be useful for ...

Cyanobacteria, as they still exist today, were the first organisms to carry out photosynthesis and release oxygen. Produced in primeval oceans about 2.5 billion years ago, this oxygen accumulated in ...

Sponges may be ancient, but their timeline has been murky. New research suggests the earliest sponges were soft and ...

Pinpointing when early land plants colonized terrestrial environments and began influencing Earth's systems is a core ...

A layer of rock just 520 million years old sat directly on top of ancient rock dating back 1.4 to 1.8 billion years.

Compared to previous theories, the current research emphasizes the complexity of the biological and chemical processes that brought about life.

A "gravity hole" beneath Antarctica is offering scientists a rare glimpse into Earth's deep interior, a dynamic record of slow-moving processes that have been reshaping our planet for tens of millions ...

A lost cache of 250-million-year-old fossils from Australia has rewritten part of the story of life after Earth’s worst mass extinction. Instead of a single marine amphibian species, researchers ...

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