Heading For The Badlands
The bizarre landforms called badlands are, despite the uninviting name, a masterpiece of water and wind sculpture. They are near deserts of a special kind, where rain is infrequent, the bare rocks are poorly consolidated and relatively uniform in their…
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Astronomy
Crab Nebula
For millions of years a star shone in the far off constellation of Taurus. So far away, and so faint that even…
Chemistry
Knocking the NOx Out of Coal
Nitrogen is the most common part of the air we breathe. In fact, about 80% of the air is nitrogen. Normally,…
Biology
An Invasion of Infiltrators
Why might a species be invasive in one country but not a big problem in its native land? As an example,…
Biology
Life In The Extreme
Lowly microbes just may be the toughest living things on Earth. They have learned to survive, and indeed…