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While winter sea ice in the Arctic is declining so dramatically that ships can now navigate those waters without any icebreaker escort, the scene in the Southern Hemisphere is very different. Sea ice area around Antarctica has actually increased slightly in winter — that is, until last year.

People with serious mental illness, such as bipolar disease and schizophrenia, die on average 25 years earlier than their peers. A common cause of death is heart disease that frequently develops unchecked due to lack of preventive care.

UCLA physicists have proposed new theories for how the universe’s first black holes might have formed and the role they might play in the production of heavy elements such as gold, platinum and uranium. 

Refineries and petrochemical plants in south Texas released nearly 1 million pounds of seven especially dangerous air pollutants during flaring and chemical spills triggered by Hurricane Harvey, according to a new Center for Biological Diversity analysis of industry data.

An existing drug may one day protect premenopausal women from life-altering infertility that commonly follows cancer treatments, according to a new study.