Physicists have started to treat a once-fringe idea with surprising seriousness: that our entire observable universe might be the interior of a black hole that formed in some larger cosmos. The notion ...

Two enormous structures that sit at the border between the Earth’s mantle and its core have puzzled scientists for decades, defying reigning theories of how our planet came to be. In a new study ...

Seismic imaging has exposed two massive zones hidden deep in Earth’s mantle. These giant blobs, known as large low-velocity provinces, or LLVPs, stretch beneath Africa and the Pacific. They are so ...

Billions of years ago, another planet smashed into Earth. An event of this epicness could have created our Moon. It also ...

Scientists may finally be closing in on the origins of two colossal, mysterious structures buried nearly 1,800 miles inside Earth—hidden formations that have puzzled researchers for decades. New ...

Scientists have discovered a heartbeat-like pulse emanating from inside the Earth beneath the continent of Africa, which they believe will one day rip the continent into pieces. In a new study ...

ANU geophysicist Professor Hrvoje Tkalčić says that the dynamics of Earth's magnetic field is an area of strong interest in the scientific community. A doughnut-shaped region thousands of kilometres ...

Hrvoje Tkalčić receives funding from the Australian Research Council. About 2,890 kilometres beneath our feet lies a gigantic ball of liquid metal: our planet’s core. Scientists like me use the ...

Rockström is a research professor in earth system science at University Potsdam, the director of the Potsdam Institute for Climate Impact Research, and co-founder of the Planetary Guardians. The ...