Nearly 180 nations agreed to details of a pact to combat global warming Monday, leaving the United States isolated after marathon negotiations.
After a federal agency suspended all research on humans last week, Johns Hopkins Medicine will be allowed to resume their work with the agency's approval.
The National Institutes of Health released a study today underscoring the tremendous potential of embryonic stem cells to treat everything from Alzheimer's disease to cancer.
The Senate Thursday defeated an amendment aimed at delaying oil and gas drilling in the eastern Gulf of Mexico.
Scientists in Virginia are the first in the world to harvest human embryos for the sole purpose of using the stem cells for research.
Interior Secretary Gale Norton announced yesterday plans to open 1.47 million acres of the eastern Gulf of Mexico to oil and natural gas exploration.
By PBS NewsHour
The 1997 Kyoto Protocol outlines a global strategy to reduce the emissions of greenhouse gases which scientists believe are warming the Earth.
By PBS NewsHour
The following is the text of President Bush's memo calling for energy conservation at federal facilities.
The Russian space station Mir made a fiery return to Earth, crashing down in the South Pacific.
Engineers completed history's first asteroid landing today when the NEAR spacecraft successfully touched down on the surface of Eros, 196 million miles from Earth.
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