A Giant X-Ray Machine
The first clear detection of X-rays from the giant, gaseous planet Saturn has been made with NASA's Chandra X-ray Observatory. Chandra's image shows that the X-rays are concentrated near Saturn's equator, a surprising result since Jupiter's X-ray emission is…
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Physics
The Physics of Sandcastles
Give a plastic bucket and a shovel to a child, then turn her loose on a beach full of sand. She'll happily…
Chemistry
Was Popeye Wrong?
When you think of Popeye the Sailor what is the first thing that comes to your mind? It is probably spinach.…
Geology
How Do We Predict The Climate--100,000 Years Ago?
Since the only ice age that occurred during human existence ended 10,000 to 12,000 years ago, how can we know…
Biology
The Human Pancreas
The pancreas is a body organ that does some heavy lifting. It carries on two important functions relating to…