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Whose Blood is it Anyway?

Blood collected from umbilical cords and placentas-- which are usually thrown away following birth--contains stem cells that can rebuild the blood and immune systems of people with leukemia and other cancers

By Ronald M. Kline

Violent Pride

Do people turn violent because of self-hate, or self-love?

By Roy F. Baumeister

The Fury of Space Storms

Shock Waves From The Sun Can Trigger Severe Turbulence In The Space Around The Earth, Endangering Satellites And Astronauts In Orbit. Now a New Spacecraft Is Showing How Space Storms Develop

By James L. Burch

Seeds of Concern

Are genetically modified crops an environmental dream come true or a disaster in the making? Scientists are looking for answers

By Kathryn Brown

Life's Rocky Start

Air, water and rock were the only raw materials available on the early earth. The first living entities must have been fabricated from these primitive resources. New experiments suggest that minerals the basic components of the rocks could have played starring roles in that dramatic feat.

By Robert M. Hazen

The Risks on the Table

More than half the foods in U.S. supermarkets contain genetically modified ingredients. Have they been proved safe for human consumption?

By Karen Hopkin


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