Sandy selfie sent from NASA Mars rover

The latest self-portrait from NASA's Curiosity Mars rover shows the car-size mobile laboratory beside a dark dune where it has been scooping and sieving samples of sand.

One fractal quantifies another, mathematicians find

To humor mathematicians, picture a pile of sand grains – say, a billion – in one square of a vast sheet of graph paper. If four or more grains occupy a single square, that square topples by sending one grain to each of ...

Ancient Egyptians transported pyramid stones over wet sand

Physicists from the FOM Foundation and the University of Amsterdam have discovered that the ancient Egyptians used a clever trick to make it easier to transport heavy pyramid stones by sledge. The Egyptians moistened the ...

Fragments of continents hidden under lava in the Indian Ocean

The islands Reunion and Mauritius, both well-known tourist destinations, are hiding a micro-continent, which has now been discovered. The continent fragment known as Mauritia detached about 60 million years ago while Madagascar ...

Why 'singing' sand dunes hum certain notes

What does Elvis Presley have in common with a sand dune? No, it's not that people sometimes spot both in the vicinity of Las Vegas. Instead, some sand dunes, like The King, can sing. And new research looking for clues to ...

Researchers discover ancient symbiosis between animals, bacteria

Marine shallow water sandy bottoms on the surface appear desert-like and empty, but in the interstitial space between the sand grains a diverse fauna flourishes. In addition to bacteria and protozoa numerous animal phyla ...

Even Canadian rocks are different

Canadians have always seen themselves as separate and distinct from their American neighbours to the south, and now they have geological proof.

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