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  • NASA's THEMIS satellite sees a great electron escape
    When scientists discovered two great swaths of radiation encircling Earth in the 1950s, it spawned over-the-top fears about "killer electrons" and space radiation effects on Earthlings. The fears were soon quieted: the radiation doesn't reach Earth, though it can affect satellites and humans moving through the belts. Nevertheless, many mysteri […]
  • Glimpses of the interstellar material beyond our solar system
    A great magnetic bubble surrounds the solar system as it cruises through the galaxy. The sun pumps the inside of the bubble full of solar particles that stream out to the edge until they collide with the material that fills the rest of the galaxy, at a complex boundary called the heliosheath. On the other side of the boundary, electrically charged particles […]
  • 'Your password is invalid': Improving website password practices
    Internet users are increasingly asked to register with a user name and password before being able to access the content of many sites. Researchers have now identified impediments to efficient password creation and provided design strategies for enhancing the user experience.
  • Risk-based passenger screening could make air travel safer
    Intensive screening of all airline passengers actually makes the system less secure by overtaxing security resources, while risk-based methods increase overall security, according to new research. The researchers developed three algorithms dealing with risk uncertainty in the passenger population. Then, they ran simulations to demonstrate how their algorithm […]
  • Ultra-fast photodetector and terahertz generator
    Photodetectors made from graphene can process and conduct light signals as well as electric signals extremely fast. Within picoseconds the optical stimulation of graphene generates a photocurrent. Until now, none of the available methods were fast enough to measure these processes in graphene. Scientists have now developed a method to measure the temporal dy […]
  • IBEX spacecraft measures 'alien' particles from outside solar system
    Using data from NASA's Interstellar Boundary Explorer spacecraft, an international team of researchers has measured neutral "alien" particles entering our solar system from interstellar space. A suite of studies provides a first look at the constituents of the interstellar medium, the matter between star systems, and how they interact with our […]
  • Volunteers clear tiger snares in China
    Volunteers working in northeast China have cleared 162 illegal wire snares in an ongoing effort to protect the nation’s remaining population of critically endangered Amur (Siberian) tigers.
  • Severe declines in Everglades mammals linked to invasive pythons, researchers find
    New research links precipitous declines in formerly common mammals in Everglades National Park to the presence of invasive Burmese pythons.
  • New genetic subtype of lung cancer defined
    Investigators have defined the role of a recently identified gene abnormality – rearrangements in the ROS1 gene – in a deadly form of lung cancer. ROS1-rearranged tumors represent one to two percent of non-small-cell lung cancers, the leading cause of cancer death in the US. The researchers also show that ROS1-driven tumors can be treated with crizotinib and […]
  • Five US urban counties lead 'Terror Hot Spots' list, but rural areas not exempt
    Five urban counties lead the list of US terror "hot spots" - Manhattan, LA, Miami-Dade, San Francisco and Washington, DC - though smaller, more rural areas have emerged as hot spots in their own right in recent years with an increase in domestic terror there, says new research. The researchers identified 65 of the nation's 3,143 counties as […]

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