A new study published in Nature has found that more than 56 percent of the world's oceans have changed color in the past 20 years, and climate change is to blame.
The National Institutes of Health is beginning a handful of studies to test possible treatments for long COVID, an anxiously awaited step in U.S. efforts against the mysterious condition that afflicts millions.
More than 70 years after doctors at Johns Hopkins Hospital took Henrietta Lacks’ cervical cells without her knowledge, a lawyer for her descendants said they have reached a settlement with a biotechnology company that they accused of reaping billions of dollars from a racist medical system.