A team of scientists is preparing to dive deep into the depths of the Indian Ocean into a “Midnight Zone” where light barely reaches, but life still thrives.

By James Brooks, Associated Press

Without the "billion billion billion" Prochlorococcus, a plant-like bacteria in the ocean, Earth would not have the oxygen we breathe today. But the more scientists study about these diverse organisms, the less they know, says Penny Chisholm, an oceanographer at…

By Rebecca Jacobson, Inside Energy

Residents of Greenland's west coast say they are feeling the effects of rising sea temperatures in the fishing and tourism industries. NewsHour correspondent Spencer Michels reports on the research into whether the changes are climate change-related.