It is not easy to get to Mars. Dozens of past missions have failed, with only a handful even attempting to land on the planet's surface. However, in January 2004, careful planning paid off when the Mars Exploration...
In spite of the unpredictability of volcanoes, scientists have learned to read the many signs they display prior to an eruption, in the hope of minimizing damage to lives and personal property. This video segment...
For the past 100 million years, redeposited sediment has gradually increased the size of the Mississippi River Delta. But over the past several decades, the coast of southern Louisiana has been losing rather than...
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