In the News
Study Finds Mixed Results On Teen Sexual Behavior From Abstinence-only
Abstinence-only education can influence teen sexual behavior and beliefs, according to a study from Case Western Reserve University.This community-based evaluation reveals that abstinence-only intervention can influence knowledge, beliefs and intentions, and among sexually experienced students, may reduce the prevalence of casual sex. Student Looks For Cell Damage In The Use Of Hydrogels To Repair Injure
In a Johns Hopkins tissue engineering lab where researchers are making new materials to repair injured knees, nosesand other body parts, an undergraduate is performing critical experiments to determine whether this promising technique might damage cells. Toxic Releases Down From North American Industry Leaders, Increasing F
The latest Taking Stock report from the Commission for Environmental Cooperation reveals a continued decline in releases of toxic chemicals to the environment -- 15 percent for the US and Canada from 1998 to 2004 -- driven by a group of industrial facilities that are the largest generators of emissions. The report also, however, reveals a substantial increase in chemical releases and transfers by a much larger group of industrial facilities that report lower emission volumes. Netscapes: Tracing the Journey of a Single Bit
The internet surrounds us like air, saturating our offices and homes. But it's not confined to the ether. This photo essay captures the journey of a single bit, as data flashes from sea to wired sea.
 America on the Move: From the Smithsonian's Bicycle Collection
Exhibit on the history of bicycles, mostly based on the 1974 book "Wheels and Wheeling: The Smithsonian Cycle Collection."Features essays on the history of bicycling and images of vintage bicycles and other bicycle-related materials from the Smithsonian Institution collections. Many of the images link to detailed descriptions of the bicycles (from 1818 to 1965). From the Smithsonian National Museum of American History. Massive Black Hole
A massive, or rather supermassive, black hole, millions of times the mass of the sun, has been spotted by UK and German astronomers. Two Telescopes Combine To Probe Young 'Family'Of Stars
A spectacular new image from NASA's Spitzer Space Telescope uncovers a small group of young stellar "siblings"in the southern portion of the Serpens cloud -- located approximately 848 light-years away from Earth. Scientists suspect that this discovery will lead them to more clues about how these cosmic families, which contain hundreds of gravitationally bound stars, form and interact. A Public Trust at Risk: The Heritage Health Index Report on the State
The report from a survey in December 2005 that concluded "immediate action is needed to prevent the loss of millions of irreplaceable artifacts"in libraries and museums. Areas of concern included permanent damage to items, lack of emergency planning, and conservation staffing. Also includes links to related information. From the Heritage Preservation and the Institute of Museum and Library Services. Long-sought Maya City -- Site Q -- found in Guatemala
A team of scientists including Marcello Canuto, assistant professor of anthropology at Yale, has found incontrovertible proof of Site Q, a long-speculated Mayan city, during a mission to the northwest Peten region of Guatemala. Astrophysics: High Energy Galactic Particle Accelerator Located
An unprecedented measuring campaign has succeeded in precisely defining the place of origin of high-energy gamma radiation in the galaxy Messier 87. This radiation can only be produced by accelerating elementary particles to very high energies in enormous cosmic objects. Now the underlying extreme physical processes and inherent implications can be investigated in more detail.
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