LOS ALAMOS, New Mexico, January 31, 2012—Space scientists, including researchers from Los Alamos National Laboratory, today described the first detailed analyses of captured interstellar neutral atoms—raw material for the formation of new stars, planets and even human beings. The information was presented in Washington, D.C., at a press conference sponsored by the National Aeronautics and Space Administration (NASA).
Heavens
Using data from NASA's Interstellar Boundary Explorer (IBEX) spacecraft, an international team of researchers has measured neutral "alien" particles entering our solar system from interstellar space. A suite of studies published in the Astrophysical Journal provide a first look at the constituents of the interstellar medium, the matter between star systems, and how they interact with our heliosphere.
Improving fire-fighting techniques in space and getting a better understanding of fuel combustion here on Earth are the focus of a series of experiments on the International Space Station, led by a professor at the Jacobs School of Engineering at the University of California, San Diego. A first round of experiments ran from March 2009 to December 2011. A second round kicked off in January and is set to last a year or more.
DURHAM, N.H. – Space scientists, including researchers from the University of New Hampshire (UNH), today described the first detailed analyses of samples of captured interstellar neutral atoms – raw material for the formation of new stars, planets, and human beings.
CHAMPAIGN, Ill. — Anyone who has flown on a commercial airline since 2001 is well aware of increasingly strict measures at airport security checkpoints. A study by Illinois researchers demonstrates that intensive screening of all passengers actually makes the system less secure by overtaxing security resources.
COLLEGE PARK, Md. - Nearly a third of all terrorist attacks from 1970 to 2008 occurred in just five metropolitan U.S. counties, but events continue to occur in rural areas, spurred on by domestic actors, according to a report published today by researchers in the National Consortium for the Study of Terrorism and Responses to Terrorism (START), a Department of Homeland Security Science and Technology Center of Excellence based at the University of Maryland.
The research was conducted at Maryland and the University of Massachusetts-Boston.
People who read news on the web tend to trust the gate even if there is no gatekeeper, according to Penn State researchers.
When readers access a story from a credible news source they trust through an online portal, they also tend to trust the portal, said S. Shyam Sundar, Distinguished Professor of Communications and co-director of the Media Effects Research Laboratory. Most of these portals use computers, not people, to automatically sort and post stories.
New York, NY -- Cities across the globe are trying to develop plans to cut down their energy consumption and lower their carbon footprint by reducing the associated greenhouse gas emissions. While initial efforts have focused on individual buildings by incorporating more energy efficient lighting, windows, and building systems, deeper reductions will call for changes beyond individual buildings, requiring a rethinking of how future infrastructure and energy policies should evolve.
A new NASA study underscores the fact that greenhouse gases generated by human activity -- not changes in solar activity -- are the primary force driving global warming.
The study offers an updated calculation of the Earth's energy imbalance, the difference between the amount of solar energy absorbed by Earth's surface and the amount returned to space as heat. The researchers' calculations show that, despite unusually low solar activity between 2005 and 2010, the planet continued to absorb more energy than it returned to space.
(Jena) Every morning when the sun comes up, the ocean ground is radically cleaned. As soon as the first rays of sunlight find their way into the water, the microalgae "Nitzschia cf pellucida" start their deadly 'morning hygiene'. The algae, the size of only some few micrometers, wrap themselves and their surroundings in a highly toxic poison: cyanogen bromide, a chemical relative of hydrocyanic acid, although much more toxic.
A Naval Research Laboratory (NRL) scientist is part of a team that has recently discovered that vast clouds of hot gas are "sloshing" in Abell 2052, a galaxy cluster located about 480 million light years from Earth. The scientists are studying the hot (30 million degree) gas using X-ray data from NASA's Chandra X-ray Observatory and optical data from the Very Large Telescope to see the galaxies.
A new University of Colorado Boulder-led study appears to answer contentious questions about the onset and cause of Earth's Little Ice Age, a period of cooling temperatures that began after the Middle Ages and lasted into the late 19th century.
Alexandria, VA – Humans produce over 260 million tons of plastic each year. Almost a third of that plastic goes into disposable, one-time-use items, and only about 1% of it is recycled globally. Where does the rest of the plastic go? How does it interact with our environment? And how will it impact us in the future? In this month's issue of EARTH Magazine, follow the fate of many plastics as they make their way from our homes to our planet's oceans.
UCLA researchers have explained the puzzling disappearing act of energetic electrons in Earth's outer radiation belt, using data collected from a fleet of orbiting spacecraft.
In a paper published today in the journal Nature Physics, the team shows that the missing electrons are swept away from the planet by a tide of solar wind particles during periods of heightened solar activity.
CHICAGO --- Northwestern University Feinberg School of Medicine researchers have identified a new and unusual role for a key player in the human immune system. A protein initially believed to regulate one routine function within the cell has proven vital for another critical step in the activation of the immune system.