Related topics: mars

Ice sheet melt identified as trigger of Big Freeze

The main cause of a rapid global cooling period, known as the Big Freeze or Younger Dryas - which occurred nearly 13,000 years ago - has been identified thanks to the help of an academic at the University of Sheffield.

Mice living in sandy hills quickly evolved lighter coloration

In a vivid illustration of natural selection at work, scientists at Harvard University have found that deer mice living in Nebraska's Sand Hills quickly evolved lighter coloration after glaciers deposited sand dunes atop ...

Cassini Maps Global Pattern of Titan's Dunes

(PhysOrg.com) -- Titan's vast dune fields, which may act like weather vanes to determine general wind direction on Saturn's biggest moon, have been mapped by scientists who compiled four years of radar data collected by the ...

Martian rock arrangement not alien handiwork

At first, figuring out how pebble-sized rocks organize themselves in evenly-spaced patterns in sand seemed simple and even intuitive. But once Andrew Leier, an assistant geoscience professor at the U of C, started observing, ...

The Martian polar caps are not created equally—here's why

People have observed the bright Martian poles wax and wane for centuries, but only within the last 50 years have scientists discovered that they are mostly comprised of carbon dioxide cycling in and out of the atmosphere ...

250-million-year-old fossil seen anew with modern technology

Details of an ancient cousin of modern-day mammals are being revealed for the first time. Hi-tech scanning of an ancient fossil, which was captured in sandstone around 252–254 million years ago, is giving experts valuable ...

Curiosity rover faces its toughest climb yet on Mars

On Aug. 5, NASA's Curiosity rover will notch its 11th year on Mars by doing what it does best: studying the Red Planet's surface. The intrepid bot recently investigated a location nicknamed "Jau" that is pockmarked with dozens ...

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