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6 March 2014 1:04 pm ,
Vol. 343 ,
Magdalena Koziol, a former postdoc at Yale University, was the victim of scientific sabotage. Now, she is suing the...
Antiretroviral drugs can protect people from becoming infected by HIV. But so-called pre-exposure prophylaxis, or PrEP...
Two studies show that eating a diet low in protein and high in carbohydrates is linked to a longer, healthier life, and...
Considered an icon of conservation science, researchers at World Wildlife Fund (WWF) headquarters in Washington, D.C.,...
The new atlas, which shows the distribution of important trace metals and other substances, is the first product of...
Early in April, the first of a fleet of environmental monitoring satellites will lift off from Europe's spaceport in...
Since 2000, U.S. government health research agencies have spent almost $1 billion on an effort to churn out thousands...
- 6 March 2014 1:04 pm , Vol. 343 , #6175
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ScienceShot: How to Tie a Ribbon Round the Solar System
5 February 2013 4:10 pm
More than 3 years ago, stunned space physicists reported the discovery of a narrow band of sky lit up in the cameras of the Interstellar Boundary Explorer (IBEX) like some Milky Way on fire. High-powered hydrogen atoms, rather than light, were streaming toward the Earth-orbiting spacecraft from near where the sun's wind of charged particles encounters the magnetic field that courses between the stars. A dozen theories later, a pair of IBEX researchers report this week in The Astrophysical Journal that the interstellar magnetic field (thin gray lines wrapping around the region filled by solar wind) may be temporarily trapping and concentrating out-bound particles. The trapping would be most effective where the solar wind squarely crosses interstellar magnetic field lines (gray "life preserver"). IBEX would "see" particles that escape the trap in the sun's direction as the ribbon, here rendered in reds, yellows, and greens. The craft should thoroughly test the trapping idea as the sun's activity varies in the years ahead.
See more ScienceShots.