The Latest Breaking News from Radiation

Boris Johnson was told about debilitating health issues suffered by servicemen and their descendants as a result of radiation exposure.

Russian forces control most of the strategic Ukrainian city of Severodonetsk and are heavily shelling the twin city of Lysychansk, causing major damage, the governor of Luhansk region said on Wednesday. This comes as fighting intensifies in Ukraine's eastern Donbas region. Read about the day’s events as they unfolded on…

The findings — presented at the American Society of Clinical Oncology meeting in Chicago — could allow doctors to “focus on the patients we think would truly benefit from chemotherapy and avoid the side effects for patients for whom it’s likely unnecessary,” one expert said.

Radiation detectors in the Exclusion Zone around Ukraine's defunct Chornobyl nuclear power plant are back online for the first time since Russia seized the area on Feb. 24, and radiation levels are normal, the U.N. nuclear watchdog said on Tuesday.