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Dementia cost expected to more than double by 2040: study

Dementia costs more each year in the United States than cancer or heart disease, with annual costs ranging from $157 billion to $215 billion, according to a study released Wednesday. Much of the costs come from long-term care giving, and the price tag is expected to more than double by…

Network of satellite guardians in space keep an eye out for natural disasters

Almost unknown to the public, a constellation of satellite guardians is flying overhead, and all it takes is a phone call for them to intervene when a country is hit by a storm, earthquake, tsunami or flood. Armed with cameras or ground radar, these Earth-observation satellites were sent into orbit…

What is space weather?

Space weather is caused mainly by storms and eruptions in our volatile Sun sending potentially dangerous radiation towards Earth. It also causes the spectacular “aurora” light displays that have awed so many in the polar regions — a beautiful show of radiation hitting Earth’s magnetic field. The Sun randomly and…

Scientists find antibody ‘roadmap’ to AIDS vaccine in African patient

Scientists on a quest for an antibody-based AIDS vaccine said Wednesday they found promising clues in the uncommonly “robust” natural immune response of a patient in Africa. Studying blood samples over a three-year period after the person was infected, researchers were witness to a microscopic battle between the virus and…

Studies: Brain stimulation may break addiction to cocaine

Studies in rats have shown that stimulating a sleepy brain region in cocaine addicts can diminish craving for the drug, a technique that should also work in humans, scientists said Wednesday. A team in the United States trained rats to “self-administer”cocaine by pressing two levers. After several weeks of training,…

Scientists reveal first results in hotly anticipated dark matter experiment

A massive science instrument that is spinning the globe aboard the International Space Station has provided its first glimpse of what may be mysterious dark matter in the universe, experts said Wednesday. The first results from the Alpha Magnetic Spectrometer, the most sensitive particle physics spectrometer ever sent to space,…

Europe readies for solar storm risks

Europe launched its first space weather coordination centre Wednesday to raise the alarm for possible satellite-sizzling solar storms that also threaten astronauts in orbit, plane passengers and electricity grids on Earth. Though impossible to predict, a worst-case scenario mega-storm can happen at any time, leaving the world without Internet, telephones,…

Diabetes link to low sleep hormone levels: study

A decrease in levels of the sleep hormone melatonin has been linked to an increased risk of adult onset diabetes, according to a study published Tuesday. Research in the Journal of the American Medical Association reported that 370 women with diabetes were compared with 370 women of the same race…

Climate change pioneer James Hansen to retire

Pioneering NASA climatologist James Hansen, one of the first scientists to raise the alarm about global warming, is retiring after 46 years, a colleague confirmed to AFP on Tuesday. Hansen, 72, who headed the Goddard Institute for Space Studies in New York, announced his departure in an email to the…

U.S. deploys sea-based radar amid North Korea crisis

WASHINGTON — The United States has deployed a sophisticated sea-based radar to the ocean east of Japan to track any North Korean ballistic missile launches, a Pentagon official said Tuesday. The Sea based X-Band Radar (SBX) looks like an enormous balloon mounted on a large ocean oil rig. The large…

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