Saturday, Apr 20th
Last update07:17:01 AM GMT
The concern focuses on strict new ethics criteria that the National Institutes of Health has proposed. Advocates of stem cell research say that most of the work currently underway passed close ethical scrutiny but that the procedures varied and usually did not match the details specified in the proposed new guidelines.
 A dead spacecraft the size of a truck ignites with plasma and pulverizes into dust and... |
A total solar eclipse dazzled citizens of the United States, Mexico and Canada on Monday, giving... | ||
 Nobel prize-winning physicist Peter Higgs, who proposed the existence of the so-called "God particle" that helped... |
Get ready for a spectacular show: A total solar eclipse will occur above the U.S. on... |
