The Ebola Outbreak’s Central Mystery: Scientists believe that the Bundibugyo virus persists in an animal species, occasionally spilling over into humans. But they have yet to identify the species Continue

People with blood type B – either positive or negative – face a slightly higher risk of developing type 2 diabetes than people with non-B blood types. Continue

Emotions often seem unpredictable. But neuroscience suggests the brain organizes them into a coherent system to better navigate your environment. Continue

California billionaires tax qualifies for ballot, setting up costly fight.  An idea loved by progressives and loathed by Silicon Valley appears headed to voters in November. Continue

Establishing a human colony on Mars is fraught with risk. Why are so many people obsessed with achieving it? Continue

Gut microbes produce the chemicals that shape your mood, your immune system, and your cognitive health Continue

Federal scrutiny of Gavin Newsom and his wife has unsettled allies, prompted some associates to consider legal representation and opened a new front in the governor’s battle with the White House. Continue

Jules Verne predicted submarines and Moon missions. He also got some things hilariously wrong. For a man writing in the 1800s, he was often astonishingly close Continue

Chance of mega earthquake hitting California now at a 'historic high', experts warn. The faults beneath Los Angeles are at their highest stress in 1,000 years – and overdue for a release Continue