Eighty years since the bombing of Hiroshima, survivor Toshiyuki Mimaki says the world now faces its "most dangerous" era.

A silent prayer was held in Japan on Wednesday morning as it marked 80 years since the United States dropped an atomic bomb ...

The sister of a woman who was diagnosed with cancer years ago is preparing to be a bone marrow donor to help save the life of ...

Exactly 80 years since an atomic bomb was used in war for the first time, thousands bowed their heads in prayer in Hiroshima on Wednesday, as the city's mayor warned world leaders about the nuclear ...

Life may be able to survive beneath the surface of Mars and other planets because of energy generated by cosmic rays, ...