Mount Everest, the high-altitude rubbish dump

Decades of commercial mountaineering have turned Mount Everest into the world's highest rubbish dump as an increasing number of big-spending climbers pay little attention to the ugly footprint they leave behind.

'Lost world' discovered in remote Australia

An expedition to a remote part of northern Australia has uncovered three new vertebrate species isolated for millions of years, with scientists Monday calling the area a "lost world".

Viruses—lots of them—are falling from the sky

An astonishing number of viruses are circulating around the Earth's atmosphere – and falling from it – according to new research from scientists in Canada, Spain and the U.S.

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Mountain

A mountain is a large landform that stretches above the surrounding land in a limited area usually in the form of a peak. A mountain is generally steeper than a hill. The adjective montane is used to describe mountainous areas and things associated with them. The study of mountains is Orology. The 50 tallest mountains in the world are in Asia.[citation needed]

Exogeology deals with planetary mountains, which in that branch of science are usually called montes (singular - mons). The highest known mountain in the Solar System is Olympus Mons on the planet Mars (elevation 21,171 m).

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