The five most popular stories on CNN.com in the past 24 hours, according to NewsPulse:
New fire at Japan nuclear plant: A fire was discovered Wednesday in the Fukushima Daiichi nuclear plant, the latest in a series of setbacks at the stricken plant that has heightened fears that the incidents could lead to widespread radiation contamination.
Nuclear fears grow amid deaths in Japan: Wednesday broke in Japan with news of a new blaze at the damaged nuclear plant that crews have struggled to control since last week's devastating earthquake and tsunami, adding to radiation fears in a country racing to avoid a full-on nuclear crisis.
Gottfried fired as voice of Aflac duck: The Aflac duck lost its voice Monday after the insurance giant fired the comedian behind the commercial quack for tweeting jokes about the earthquake and tsunami that have devastated Japan.
New blast, fire fuel nuclear fears: Japanese Prime Minister Naoto Kan said Tuesday the risk of further releases of radioactive material remains "very high," as crews struggle to contain an increasingly critical crisis at a damaged nuclear plant.
Cocaine found at Kennedy Space Center: NASA's Inspector General's Office says an investigation is under way after a white powdery substance found at the Kennedy Space Center tested positive for cocaine.