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Earth’s interior 80 million years ago with hot structures in yellow to red (darker is shallower) and cold structures in blue (darker is deeper). Ömer Bodur/Nature

Volcanoes, diamonds, and blobs: a billion-year history of Earth’s interior shows it’s more mobile than we thought

Ancient blobs deep inside the Earth gather together and break apart like continents, according to new research.
NASA ‘could not imagine the radical effect of seeing the Earth’ from the moon. In the face of a climate catastrophe, we all need to step back and see the Earth again. Bill Anders/NASA/Handout

Friday essay: thinking like a planet - environmental crisis and the humanities

Historical perspective can offer much in this time of ecological crisis,. Many historians are reinventing their traditional scales of space and time to tell different kinds of stories that recognise the unruly power of nature.
Fossilised ancient human footprints at the Mungo National Park. How are we to engage with a history that spans 65,000 years? Michael Amendolia/AAP

Friday essay: when did Australia’s human history begin?

Over the past half century, Australia has experienced a ‘time revolution’ with Indigenous history pushed back into the dizzying expanse of deep time. The latest discovery reminds us that science, like history, is an ongoing inquiry.

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