Three scientists -- two from the United States and one from Germany -- were selected as winners of the 2005 Nobel Prize in Physics for their work in optics.
The Nobel Committee met Tuesday in Oslo, Norway, to select the winner of the Nobel Peace Prize, but the winner's identity won't be announced until Oct. 8.
Paul Lauterbur and Peter Mansfield have been selected to receive the 2003 Nobel Prize in Physiology or Medicine for their work in magnetic resonance imaging.
Brazil's president is a frontrunner for the Nobel Peace Prize, Brazilian news sources reported Friday.
The centennial Nobel Peace Prize was awarded Friday to the United Nations and its Secretary-General Kofi Annan.