Japan's Osamu Shimomura reacts after receives the 2008 Nobel Prize in Chemistry at the Concert Hall in Stockholm December 10, 2008. The chemistry prize was awarded jointly to Shimomura, and Martin Chalfie and Roger Tsien of the U.S. "for the discovery and development of the green fluorescent protein, GFP". REUTERS/Bob Strong (SWEDEN) 

Roger Tsien of the U.S. receives the 2008 Nobel Prize in Chemistry from Sweden's King Carl XVI Gustaf (R) at the Concert Hall in Stockholm December 10, 2008. The chemistry prize was awarded jointly to Tsien, Martin Chalfie of the U.S. and Japan's Osamu Shimomura "for the discovery and development of the green fluorescent protein, GFP". REUTERS/Bob Strong (SWEDEN) 

Roger Tsien of the U.S. reacts after receiving the 2008 Nobel Prize in Chemistry at the Concert Hall in Stockholm December 10, 2008. The chemistry prize was awarded jointly to Tsien, Martin Chalfie of the U.S. and Japan's Osamu Shimomura "for the discovery and development of the green fluorescent protein, GFP". REUTERS/Bob Strong (SWEDEN) 

Martin Chalfie of the U.S. receives the 2008 Nobel Prize in Chemistry from Sweden's King Carl XVI Gustaf (R) at the Concert Hall in Stockholm December 10, 2008. The chemistry prize was awarded jointly to Chalfie, Japan's Osamu Shimomura, and Roger Tsien of the U.S. "for the discovery and development of the green fluorescent protein, GFP". REUTERS/Bob Strong (SWEDEN) 

Martin Chalfie of the U.S. reacts after receiving the 2008 Nobel Prize in Chemistry at the Concert Hall in Stockholm December 10, 2008. The chemistry prize was awarded jointly to Chalfie, Japan's Osamu Shimomura, and Roger Tsien of the U.S. "for the discovery and development of the green fluorescent protein, GFP". REUTERS/Bob Strong (SWEDEN) 

Nobel Chemistry prize winners Osamu Shimomura (C) of Japan, Martin Chalfie (L) of the U.S and Roger Y. Tsien of the US stand on the stage after delivering their Nobel lectures at Stockholm University in Stockholm December 8, 2008. REUTERS/Bob Strong (SWEDEN) 

Japan's Osamu Shimomura, one of three scientists awarded the Nobel Prize in Chemistry for 2008, attends a news conference in Stockholm December 7, 2008. REUTERS/Bob Strong (SWEDEN) 

Photographers take pictures of Japan's Osamu Shimomura (L), Makoto Kobayashi (C) and Toshibide Maskawa before a Nobel Prize news conference in Stockholm December 7, 2008. Shimomura was awarded the Nobel Prize in Chemistry while Kobayashi and Maskawa won the Nobel Prize in Physics. REUTERS/Bob Strong (SWEDEN) 

U.S. scientist Roger Tsien (C), joint 2008 Nobel Prize winner in Chemistry, enjoys a glass of champagne with faculty at the University of California San Diego following a press conference at the school in La Jolla, California October 8, 2008. Japanese researcher Osamu Shimomura and Americans Tsien and Martin Chalfie were jointly awarded the 2008 Nobel Prize for Chemistry on Wednesday. They won "for the discovery and development of the green fluorescent protein, GFP".
REUTERS/Mike Blake (UNITED STATES) 

U.S. scientist Roger Tsien, joint 2008 Nobel Prize winner in Chemistry, holds his glass as vice chancellor of health sciences David Brenner pops the cork of a bottle of champagne at the University of California San Diego following a press conference at the school in La Jolla, California October 8, 2008. Japanese researcher Osamu Shimomura and Americans Tsien and Martin Chalfie were jointly awarded the 2008 Nobel Prize for Chemistry on Wednesday. They won "for the discovery and development of the green fluorescent protein, GFP".
REUTERS/Mike Blake (UNITED STATES) 

U.S. scientist Roger Tsien, joint 2008 Nobel Prize winner in Chemistry, celebrates with a glass of champagne at the University of California San Diego following a news conference at the school in La Jolla, California October 8, 2008. Japanese researcher Osamu Shimomura and Americans Tsien and Martin Chalfie were jointly awarded the 2008 Nobel Prize for Chemistry on Wednesday. They won "for the discovery and development of the green fluorescent protein, GFP".
REUTERS/Mike Blake (UNITED STATES) 

U.S. scientist Roger Tsien, joint 2008 Nobel Prize winner in Chemistry, speaks at a news conference at the University of California San Diego in La Jolla, California October 8, 2008. Japanese researcher Osamu Shimomura and Americans Tsien and Martin Chalfie were jointly awarded the 2008 Nobel Prize for Chemistry on Wednesday. They won "for the discovery and development of the green fluorescent protein, GFP".
REUTERS/Mike Blake (UNITED STATES) 

U.S. scientist Roger Tsien, joint 2008 Nobel Prize winner in Chemistry, waits to speak at a University of California San Diego news conference in La Jolla, California October 8, 2008. Japanese researcher Osamu Shimomura and Americans Tsien and Martin Chalfie were jointly awarded the 2008 Nobel Prize for Chemistry on Wednesday. They won "for the discovery and development of the green fluorescent protein, GFP".
REUTERS/Mike Blake (UNITED STATES) 

U.S. scientist Roger Tsien, joint 2008 Nobel Prize winner in Chemistry, waits to speak at a University of California San Diego news conference in La Jolla, California October 8, 2008. Japanese researcher Osamu Shimomura and Americans Tsien and Martin Chalfie were jointly awarded the 2008 Nobel Prize for Chemistry on Wednesday. They won "for the discovery and development of the green fluorescent protein, GFP".
REUTERS/Mike Blake (UNITED STATES) 

U.S. scientist Roger Tsien, joint 2008 Nobel Prize winner in Chemistry, is poured a glass of champagne by vice chancellor of health sciences David Brenner at the University of California San Diego following a news conference at the school in La Jolla, California October 8, 2008. Japanese researcher Osamu Shimomura and Americans Tsien and Martin Chalfie were jointly awarded the 2008 Nobel Prize for Chemistry on Wednesday. They won "for the discovery and development of the green fluorescent protein, GFP".
REUTERS/Mike Blake (UNITED STATES) 

Martin Chalfie (L), one of the winners of the 2008 Nobel Prize in Chemistry, speaks with colleagues after a news conference in New York October 8, 2008. American researchers Chalfie and Roger Y Tsien and Japanese researcher Osamu Shimomura shared the 2008 Nobel Prize for Chemistry on Wednesday for the discovery and development of the green fluorescent protein GFP. REUTERS/Shannon Stapleton (UNITED STATES) 

U.S. scientist Roger Tsien, joint 2008 Nobel Prize winner in Chemistry, celebrates with a glass of champagne at the University of California San Diego following a news conference at the school October 8, 2008 in La Jolla, California. Japanese researcher Osamu Shimomura and Americans Tsien and Martin Chalfie were jointly awarded the 2008 Nobel Prize for Chemistry on Wednesday. They won "for the discovery and development of the green fluorescent protein, GFP".
REUTERS/Mike Blake (UNITED STATES) 

Martin Chalfie, one of the winners of the 2008 Nobel Prize in Chemistry, smiles during a news conference in New York October 8, 2008. American researchers Chalfie and Roger Y Tsien and Japanese researcher Osamu Shimomura shared the 2008 Nobel Prize for Chemistry on Wednesday for the discovery and development of the green fluorescent protein GFP. REUTERS/Shannon Stapleton (UNITED STATES) 

Martin Chalfie, one of the winners of the 2008 Nobel Prize in Chemistry, sits during a press conference in New York October 8, 2008. Osamu Shimomura, Martin Chalfie and Roger Y Tsien shared the 2008 Nobel Prize for Chemistry on Wednesday for the discovery and development of the green fluorescent protein GFP. REUTERS/Shannon Stapleton (UNITED STATES) 

Martin Chalfie, one of the winners of the 2008 Nobel Prize in Chemistry, smiles after arriving for a news conference in New York October 8, 2008. Osamu Shimomura, Martin Chalfie and Roger Y Tsien shared the 2008 Nobel Prize for Chemistry on Wednesday for the discovery and development of the green fluorescent protein GFP. REUTERS/Shannon Stapleton (UNITED STATES) 

Martin Chalfie, one of the winners of the 2008 Nobel Prize in Chemistry, explains his work in during a news conference in New York October 8, 2008. Two Americans and a Japanese researcher won the 2008 Nobel Prize in Chemistry on Wednesday for the discovery of a glowing jellyfish protein that makes cells, tissues and even organs light up -- a tool used by thousands of researchers around the world. The 10 million Swedish crown ($1.4 million) prize recognizes Japanese-born Osamu Shimomura, now of the Woods Hole Marine Biological Laboratory in Massachusetts, Chalfie of Columbia University in New York and Roger Tsien of the University of California, San Diego, for their discoveries with green fluorescent protein. REUTERS/Shannon Stapleton (UNITED STATES) 

Martin Chalfie, one of the winners of the 2008 Nobel Prize in Chemistry, explains his work during a news conference in New York October 8, 2008. Osamu Shimomura, Martin Chalfie and Roger Y Tsien shared the 2008 Nobel Prize for Chemistry on Wednesday for the discovery and development of the green fluorescent protein GFP. REUTERS/Shannon Stapleton (UNITED STATES) 

Martin Chalfie, winner of the 2008 Nobel Prize in Chemistry, explains his work to journalists while his dog Bernie does tricks in his apartment in New York October 8, 2008. Two Americans and a Japanese researcher won the 2008 Nobel Prize in Chemistry on Wednesday for the discovery of a glowing jellyfish protein that makes cells, tissues and even organs light up -- a tool used by thousands of researchers around the world. The 10 million Swedish crown ($1.4 million) prize recognizes Japanese-born Osamu Shimomura, now of the Woods Hole Marine Biological Laboratory in Massachusetts, Chalfie of Columbia University in New York and Roger Tsien of the University of California, San Diego, for their discoveries with green fluorescent protein. REUTERS/Chip East (UNITED STATES) 

Martin Chalfie, winner of the 2008 Nobel Prize in Chemistry, is interviewed while trying to take his dog Bernie for a walk in New York October 8, 2008. Two Americans and a Japanese researcher won the 2008 Nobel Prize in Chemistry on Wednesday for the discovery of a glowing jellyfish protein that makes cells, tissues and even organs light up -- a tool used by thousands of researchers around the world. The 10 million Swedish crown ($1.4 million) prize recognizes Japanese-born Osamu Shimomura, now of the Woods Hole Marine Biological Laboratory in Massachusetts, Chalfie of Columbia University in New York and Roger Tsien of the University of California, San Diego, for their discoveries with green fluorescent protein.
REUTERS/Chip East (UNITED STATES) 

Martin Chalfie, winner of the 2008 Nobel Prize in Chemistry, thinks over a question from a journalist in New York October 8, 2008. Two Americans and a Japanese researcher won the 2008 Nobel Prize in Chemistry on Wednesday for the discovery of a glowing jellyfish protein that makes cells, tissues and even organs light up -- a tool used by thousands of researchers around the world. The 10 million Swedish crown ($1.4 million) prize recognizes Japanese-born Osamu Shimomura, now of the Woods Hole Marine Biological Laboratory in Massachusetts, Chalfie of Columbia University in New York and Roger Tsien of the University of California, San Diego, for their discoveries with green fluorescent protein. REUTERS/Chip East (UNITED STATES) 

Martin Chalfie, winner of the 2008 Nobel Prize in Chemistry, speaks outside his apartment in New York October 8, 2008. Two Americans and a Japanese researcher won the 2008 Nobel Prize in Chemistry on Wednesday for the discovery of a glowing jellyfish protein that makes cells, tissues and even organs light up -- a tool used by thousands of researchers around the world. The 10 million Swedish crown ($1.4 million) prize recognizes Japanese-born Osamu Shimomura, now of the Woods Hole Marine Biological Laboratory in Massachusetts, Chalfie of Columbia University in New York and Roger Tsien of the University of California, San Diego, for their discoveries with green fluorescent protein. REUTERS/Chip East (UNITED STATES) 

Martin Chalfie, winner of the 2008 Nobel Prize in Chemistry, explains his work in New York October 8, 2008. Two Americans and a Japanese researcher won the 2008 Nobel Prize in Chemistry on Wednesday for the discovery of a glowing jellyfish protein that makes cells, tissues and even organs light up -- a tool used by thousands of researchers around the world.
The 10 million Swedish crown ($1.4 million) prize recognizes Japanese-born Osamu Shimomura, now of the Woods Hole Marine Biological Laboratory in Massachusetts, Chalfie of Columbia University in New York and Roger Tsien of the University of California, San Diego, for their discoveries with green fluorescent protein. REUTERS/Chip East (UNITED STATES) 

Martin Chalfie, winner of the 2008 Nobel Prize in Chemistry, explains his work in New York October 8, 2008. Two Americans and a Japanese researcher won the 2008 Nobel Prize in Chemistry on Wednesday for the discovery of a glowing jellyfish protein that makes cells, tissues and even organs light up -- a tool used by thousands of researchers around the world.
The 10 million Swedish crown ($1.4 million) prize recognizes Japanese-born Osamu Shimomura, now of the Woods Hole Marine Biological Laboratory in Massachusetts, Chalfie of Columbia University in New York and Roger Tsien of the University of California, San Diego, for their discoveries with green fluorescent protein. REUTERS/Chip East (UNITED STATES) 

Martin Chalfie, winner of the 2008 Nobel Prize in Chemistry, speaks in his apartment in New York shortly after the announcement October 8, 2008. Two Americans and a Japanese researcher won the 2008 Nobel Prize in Chemistry on Wednesday for the discovery of a glowing jellyfish protein that makes cells, tissues and even organs light up -- a tool used by thousands of researchers around the world. The 10 million Swedish crown ($1.4 million) prize recognizes Japanese-born Osamu Shimomura, now of the Woods Hole Marine Biological Laboratory in Massachusetts, Chalfie of Columbia University in New York and Roger Tsien of the University of California, San Diego, for their discoveries with green fluorescent protein. REUTERS/Chip East (UNITED STATES) 

Martin Chalfie, winner of the 2008 Nobel Prize in Chemistry, explains his work in New York October 8, 2008. Two Americans and a Japanese researcher won the 2008 Nobel Prize in Chemistry on Wednesday for the discovery of a glowing jellyfish protein that makes cells, tissues and even organs light up -- a tool used by thousands of researchers around the world.
The 10 million Swedish crown ($1.4 million) prize recognizes Japanese-born Osamu Shimomura, now of the Woods Hole Marine Biological Laboratory in Massachusetts, Chalfie of Columbia University in New York and Roger Tsien of the University of California, San Diego, for their discoveries with green fluorescent protein. REUTERS/Chip East (UNITED STATES)