"It's a very curious time in high-energy physics," says Michael Peskin, a researcher at SLAC National Accelerator Laboratory in California. On the one hand, researchers have just made the most significant discovery in decades: In July of last year, they announced they had found the Higgs particle at a collider in Switzerland. The Higgs is part of the mechanism that gives mass to everything. It is so fundamental that without it, we wouldn't exist.
James Van Dyke Evers was only 3 when his father, Medgar, was assassinated in the driveway of the family's home in Jackson, Miss., in June 1963.
A sniper shot Medgar Evers in the back as he returned from a meeting late at night. Tensions had been running high because Evers, the first field secretary for the NAACP, was making headway in pushing the state's black citizens to register to vote. White Mississippians who had lived comfortably under segregation could feel the ground shifting beneath them — and they didn't like it.
A burst of brain activity just after the heart stops may be the cause of so-called near-death experiences, scientists say.
The insight comes from research involving nine lab rats whose brains were analyzed as they were being euthanized. Researchers discovered what appears to be a momentary increase in electrical activity in the brain associated with consciousness.
Although the experiment relied on animals, the results could apply to humans, too, the researchers say.
When Cecile Kyenge became the first black government minister in Italian history, the appointment was hailed as a landmark for diversity. But since Kyenge became integration minister, she has been the target of death threats and vicious racial slurs.
The debate highlights growing intolerance and what Prime Minister Enrico Letta has called a shameful chapter for Italy.