1 Japanese, 2 Americans win Nobel Prize in chemistry

1 Japanese, 2 Americans win Nobel Prize in chemistry

FALMOUTH, United States - Osamu Shimomura of Japan, professor emeritus at Boston University Medical School, speaks to reporters at the Marine Biological Laboratories in Woods Hole, Massachusetts, on Oct. 8 after being awarded the Nobel Prize in chemistry along with Martin Chalfie and Roger Y. Tsien of the United States.

1 Japanese, 2 Americans win Nobel Prize in chemistry

1 Japanese, 2 Americans win Nobel Prize in chemistry

FALMOUTH, United States - Osamu Shimomura of Japan, professor emeritus at Boston University Medical School, speaks to reporters at the Marine Biological Laboratories in Woods Hole, Massachusetts, on Oct. 8 after being awarded the Nobel Prize in chemistry along with Martin Chalfie and Roger Y. Tsien of the United States.

1 Japanese, 2 Americans win Nobel Prize in chemistry

1 Japanese, 2 Americans win Nobel Prize in chemistry

NAGOYA, Japan - Photo shows the green fluorescent protein, GFP, presented by Nagoya University in Nagoya on Oct. 8. Scientists Osamu Shimomura of Japan and Martin Chalfie and Roger Y. Tsien of the United States have won this year's Nobel Prize in chemistry for the discovery and development of the GFP.

Nobel award ceremony takes place, 3 Japanese scientists honored

Nobel award ceremony takes place, 3 Japanese scientists honored

STOCKHOLM, Sweden - Osamu Shimomura, professor emeritus at Boston University, receives his medal and diploma from Sweden's King Carl XVI Gustaf at the Stockholm Concert Hall on Dec. 10. Shimomura shared the prize in chemistry with two other scientists -- Martin Chalfie, a professor at Columbia University, and Roger Tsien, a professor at the University of California in San Diego. (Pool photo by Kyodo) (Kyodo)

1 Japanese, 2 Americans win Nobel Prize in chemistry

1 Japanese, 2 Americans win Nobel Prize in chemistry

FALMOUTH, United States - Osamu Shimomura of Japan, professor emeritus at Boston University Medical School, speaks to reporters at the Marine Biological Laboratories in Woods Hole, Massachusetts, on Oct. 8 after being awarded the Nobel Prize in chemistry along with Martin Chalfie and Roger Y. Tsien of the United States. (Kyodo)

1 Japanese, 2 Americans win Nobel Prize in chemistry

1 Japanese, 2 Americans win Nobel Prize in chemistry

FALMOUTH, United States - Osamu Shimomura of Japan, professor emeritus at Boston University Medical School, speaks to reporters at the Marine Biological Laboratories in Woods Hole, Massachusetts, on Oct. 8 after being awarded the Nobel Prize in chemistry along with Martin Chalfie and Roger Y. Tsien of the United States. (Kyodo)

1 Japanese, 2 Americans win Nobel Prize in chemistry

1 Japanese, 2 Americans win Nobel Prize in chemistry

NAGOYA, Japan - Photo shows the green fluorescent protein, GFP, presented by Nagoya University in Nagoya on Oct. 8. Scientists Osamu Shimomura of Japan and Martin Chalfie and Roger Y. Tsien of the United States have won this year's Nobel Prize in chemistry for the discovery and development of the GFP. (Kyodo)