About 4.4 billion planets are similar to Earth in size and temperature, suggesting they may be able to host life, according to a survey of the galaxy using telescopes operating in space and on the ground.
For the second time, blue-state voters have defeated a ballot initiative to require labeling of genetically modified foods. In 2012, it was California; this week, it was Washington, where a labeling referendum lost 55 percent to 45 percent.
A 63-year-old man with Type 1 diabetes received a transplant of insulin-producing cells with the aid of a device that eliminated use of immune-blocking drugs, a potential breakthrough that may lead to safer and more effective procedures to revive weakened organs.
Americans cheered by today’s news that three U.S.-based scientists won this year’s Nobel Prize in chemistry should nonetheless worry about the future of the country’s global scientific pre-eminence. Elementary students get less time for science than they did 20 years ago, and the average science literacy score of 15-year-olds remains stuck in the middle of the pack for developed countries.
Children raised in poverty or in orphanages experience chronic stress early in life that can have long-lasting effects on the brain, setting them up for future mental and physical ailments as adults, two studies found.
A terrorist attack on the U.S. power grid could be more destructive than superstorm Sandy, possibly costing hundreds of billions of dollars and leading to thousands of deaths, the National Academy of Sciences said.