reporting from London — Fear that Islamist militants are lurking amid the massive influx of refugees flooding Europe have been debated in forums such as Facebook, think tanks and government circles. But the risk of a rush of so-called refugee warriors appears overstated, in part because it is already easy for groups such as Islamic State to infiltrate Europe through safer, more conventional means
This is your brain in space — and it does not look pretty. Scientists studying the effects of radiation in rodents say that astronauts exposed to galactic cosmic rays could face a host of cognitive problems, including chronic dementia. The UC Irvine-led study, published in Scientific Reports, adds to a growing body of research on the harmful effects humans may reckon with as they venture out longe
reporting from MOUNTAIN VIEW, Calif. — A solar-powered airplane landed in California on Saturday, completing a risky, three-day flight across the Pacific Ocean as part of its journey around the world. Pilot Bertrand Piccard landed the Solar Impulse 2 in Mountain View, in the Silicon Valley south of San Francisco, at 11:45 p.m. following a 62-hour, nonstop solo flight without fuel. The plane taxie
The bold claim by North Korea on Wednesday that it had detonated a hydrogen bomb appeared to fizzle under the intense scrutiny of U.S. physicists and nuclear weapons experts. The explosive power detected by earthquake sensors around the world was much weaker than would be expected from a hydrogen bomb, experts said. “It was not very big,” said Philip Coyle, the former director of nuclear weapons t
See the most-read stories this hour >> A major earthquake off the Chilean coast triggered Thursday’s tsunami advisory for the California coast, though the resulting surge was no higher than 13 inches, Jackson said. “Just because this one likely won’t produce much damage doesn’t mean we shouldn’t be paying attention,” he said. Thursday’s tsunami advisory extended from San Onofre State Beach in San
Seventy years ago, the United States dropped two atomic bombs on Japan: Hiroshima on Aug. 6, 1945; Nagasaki on Aug. 9. With searing heat and annihilating force, the nuclear blasts tore through factories, shops and homes in both cities. Huge portions of Hiroshima and Nagasaki vanished. Weighing many factors, including the Soviet Union’s entry into the war against Japan 11 hours before the Nagasaki
The closer New Horizons gets to Pluto, the more puzzling the dwarf planet becomes. The latest image released by NASA highlights four mysterious dark spots lined up along Pluto’s equator. Each of the spots is about 300 miles across, and they are evenly spaced along a dark belt that rings the planet’s surface. When New Horizons spied the spots a few weeks ago, mission scientists were left scratching
Authorities in Liberia confirmed Tuesday that a teenager had died of Ebola, raising fears that the West African country could face a new outbreak nearly two months after it was declared free of the virus. The body of a 17-year-old boy was tested Sunday and found to be positive for Ebola, Deputy Health Minister Tolbert Nyenswah told reporters. “There is no need to panic,” Nyenswah was quoted as say
The pitch was simple, and played on the images of a devastating disease to tug on heartstrings and open pocketbooks. One of the websites featured pictures of smiling children, some of them in hospital beds, one in a tutu and a scarf covering her bare head. The money, people were told, would go directly to helping women and children sick with cancer, paying for wigs, pain medications, and transport
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