Timothy J. Ralph

The pyramids at Giza, like dozens of others, are located several kilometres west of the current path of the Nile. Alex Cimbal / Shutterstock

May 16, 2024

We mapped a lost branch of the Nile River – which may be the key to a longstanding mystery of the pyramids

Timothy J. Ralph, Macquarie University; Eman Ghoneim, University of North Carolina Wilmington, and Suzanne Onstine, University of Memphis

Why build pyramids in the desert? A centuries-old puzzle may be answered by the slow wandering of the Nile.

An oasis in the Sahara Desert, Libya. Patrick Poendl/Shutterstock

February 2, 2021

Paradox lost: wetlands can form in deserts, but we need to find and protect them

Stephen Tooth, Aberystwyth University; Peyton Lisenby, Midwestern State University, and Timothy J. Ralph, Macquarie University

Wetlands in drylands seem impossible, but their benefits to people and wildlife are very real.

Shutterstock

April 20, 2020

Australia’s inland rivers are the pulse of the outback. By 2070, they’ll be unrecognisable

Zacchary Larkin, Macquarie University; Stephen Tooth, Aberystwyth University, and Timothy J. Ralph, Macquarie University

Over the next 50 years, the arid zone – containing the areas of true desert – is projected to expand well into the Murray-Darling Basin and almost entirely envelope the Lake Eyre Basin.

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We mapped a lost branch of the Nile River – which may be the key to a longstanding mystery of the pyramids

Paradox lost: wetlands can form in deserts, but we need to find and protect them

Australia’s inland rivers are the pulse of the outback. By 2070, they’ll be unrecognisable

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