Scientists at Johns Hopkins, New York University and Mount Sinai School of Medicine in New York have found a way to block the action of specific enzymes with a pivotal role in triggering cancers, hardening of the arteries and certain autoimmune diseases. (Nature Structural Biology, 1-01)
An ongoing balloon flight over Antarctica could shed new light on the mystery of cosmic ray sources.
Astronomers say they've discovered something extraordinary: the event horizons of black holes in space.
New evidence from NASA's Chandra X-ray Observatory suggests that a known pulsar is the present-day leftover from a stellar explosion witnessed by Chinese astronomers in 386 AD.
An industrial engineer has developed a computer model to help recyclers more economically process raw materials from the millions of computers and other electronic trash landing in the waste stream every year.
1- System is "black box" for power grid; 2- Biotechnology cleans up chlorinated solvents Purifier detects pathogens at "point-of-use"; 3- Stabilizing plutonium less expensively
The NEAR Shoemaker spacecraft - the first to orbit an asteroid - embarks on a series of low-altitude passes over 433 Eros this month in a prelude to a daring February descent to the surface of the rotating, 21-mile-long space rock.
A thousands-of-years-old peek at the effects of climate change on small mammals in the western United States may provide a snapshot of the future impact of global warming on animal populations. (J. of Biogeography)
Scientists have long known that forests sometimes act as "carbon sinks," absorbing more of the greenhouse gas carbon dioxide than they release. Now, a team of researchers has identified a mechanism through which grasslands appear to demonstrate the same property. (Nature, 1-11-01)
Geological evidence suggests that Earth may have had surface water -- and thus conditions to support life -- millions of years earlier than previously thought. Scientists reconstructed the portrait of early Earth by reading the telltale chemical composition of the oldest known terrestrial rock. (Nature, 1-01)
It can take two weeks to know whether bighorn sheep bound for a new home carry bacteria linked to a deadly pneumonia. But a new DNA-based technique developed at the University of Idaho Caine Veterinary Teaching Center promises an answer within 24 to 48 hours.
Engineers from The University of Texas at Austin College of Engineering and Ford Motor Company have patented a new technology aimed at reducing vehicle emissions by 50 percent or more.
A new tax on meat and other products near the top of the food chain would improve environmental sustainability, according to Cornell ecologist and co-author of the new book, "Ecological Integrity."
New research at the University of North Carolina at Chapel Hill points to a key role played by a molecular protein in the way body cells maintain quality control when under stress. The findings add new insights into molecular changes involved in heart attack, heart failure, stroke and some common neurological disorders. (Nature Cell Biology, 1-01)
On January 9th sky watchers across some parts of Earth will enjoy a total lunar eclipse. But what would they see if they lived, instead, on the Moon?
As it completes the first of three "laps" of about a billion miles each around the heart of the Solar System, the Stardust spacecraft is getting ready for a "pit stop" of sorts, flying by Earth in mid-January for a gravitational speed boost. The added energy will put Stardust on course to meet comet Wild 2 in January 2004.
A scientific study of aviation crashes in the United States concludes that "pilot error" is a decreasing cause of crashes involving major airlines. (Aviation, Space, and Environmental Medicine, 1-01)
Researchers at Washington State University Vancouver and Princeton University have new observations about rapid climate changes in the Northern and Southern hemispheres over the past 100,000 years that could help scientists predict future climate changes. (Science)
Intriguing patterns of star motion and composition in the Milky Way hint at the presence of a remnant of a smaller galaxy consumed by the Milky Way billions of years ago. This galaxy would have been the Milky Way's last significant "meal."
The National Science Foundation has awarded $2.5 million dollars to the National Laboratory for Applied Network Research to continue technical, engineering and traffic analysis support to the high-performance networking and applications communities.
In an effort to establish a forum for technical discussion on nanotechnology and bring the new discipline to the forefront of scientific knowledge, ASME International (American Society of Mechanical Engineers) has announced an ambitious publishing acitivity for the year 2001.
Plenty of clues suggest that liquid water once flowed on Mars but the evidence remains inconclusive and sometimes contradictory.
This morning at 5 o'clock Eastern Standard time Earth made its annual closest approach to the Sun.
Scientists at the Los Alamos National Laboratory and the University of Queensland's Centre for Quantum Computer Technology in Australia have made an advance in the quest for a functional quantum computer by exploiting currently existing technology in a novel and unexpected way.
The Science@NASA home page has a new look and we're pleased to offer a host of new services as well, including Spanish-language science stories ... and more!
Researchers at Ohio State University have developed a new way to map the ocean currents that erode beaches, cost coastal towns millions of dollars in annual property losses, and threaten a tourist industry worth billions.
In a series of new studies, scientists have uncovered evidence suggesting that the soil in much of Ohio may not be good material in which to bury solid and industrial wastes. The same problems may be found in other states which underwent glaciation. (Ohio Journal of Science)
Learn about the astronomy developments supported by the NSF at the American Astronomical Society meeting at the Town & Country Resort and Conference Center in San Diego, Calif., January 7-11, 2001.
Researchers at the National Center for Atmospheric Research played a key role in developing an award-winning Web site that provides pilots with accurate weather forecasts of winds, turbulence, icing, and thunderstorms.
Israeli scientists have shown that an unusual nuclear fuel could speed space vehicles from Earth to Mars in as little as two weeks. (Nuclear Instruments and Methods in Physics Research A 455: 442-451 2000)
One of the most intense annual meteor showers, the Quadrantids, will peak over North America on January 3, 2001.
NASA's durable Galileo spacecraft flew above the solar system's largest moon this morning in search of extraterrestrial Northern Lights -- a telltale sign of Ganymede's unique magnetic field.
Scientists say that the West Antarctic Ice Sheet is retreating more slowly than they thought.
A group of scientists from Iowa State University doing research under a NSF grant reports that they have discovered a new and different spindle structure during cell division that could lead to better insight into how abnormal cells divide, as in forms of cancer. (J. of Cell Biology, 12-25-00)
There was a wealth of woeful journalism in 2000. It was a banner year for dubiousity, ranging from failed presidential pop quizzes to the amazing electoral counting catastrophe. So, return with us now to those thrilling stories from this past year.
The annual technology forecast from IEEE Spectrum is the first issue of the relaunched magazine.
As the Sun's stormy season approaches its zenith, solar scientists have the best seat in the house.
To study coral reefs, Temple University biology students travel to Belize's Great Barrier Reef.
Arabidopsis thaliana is the first plant to reveal its primordial origins. Cornell researchers found genetic evidence of its emergence between 50 million and 200 million years ago. The work could unlock genetic knowledge of important traits in agricultural crops like corn, tomatoes and wheat. (Science Dec. 15, 2000).
Cornell University researchers have developed a method for creating comparative gene maps on a computer, reducing a process that sometimes takes months by hand to a few hours.
In the wake of NASA's successful Near-Earth Asteroid Rendezvous space mission, a University of Arkansas researcher is putting together a team of scientists to take asteroid research to the next level -- bringing asteroid samples back to Earth.
Recently, two LSU geology professors took their research to new depths -- 7,000 feet down into the Gulf of Mexico, to be exact -- to study hydrocarbon seeps, gas hydrates and the single-celled micro-organisms called foraminifera that live in those environments.
Researchers at Whitehead Institute and Corning Inc. have invented a powerful new microarray technique that can decipher the function of master switches in a cell by identifying the set of genes they control. The technique allows researchers to unravel in a week what takes years to achieve by conventional methods. (Science, 12-22-00)
Certain types of bacteria on Earth are atomic engineers -- atom by atom they build tiny magnetic crystals to help themselves follow our planet's magnetic field.
Recent books from the National Center for Atmospheric Research offer insights into a range of environmental issues, including the challenge of translating environmental science into policy and the state of our knowledge about El Nino, severe storms, the carbon cycle, and the weather impacts of a changing climate.
Scientists at The University of Texas at Austin presented a report offering new geophysical clues to a cataclysmic event that may have killed off the dinosaurs.
Two astronomers at The University of Texas at Austin, working with an international team of collaborators, have shown that they can provide reliable measurements of black hole masses for active galactic nuclei such as quasars even at great distances.
Professor of engineering at The University of Texas at Austin, has received the $450,000 Japan Prize for his discoveries of the materials critical to the development of lightweight rechargeable batteries.
Bioinformatics experts from the Virginia Bioinformatics Institute (USA) and the European Media Laboratory (Germany) have joined forces to develop a software for simulating biochemical networks. It will be offered free to academic researchers and also available to businesses.
Like a computer virus eating away software, chronic alcohol abuse can change the programming of critical areas of the human brain on the molecular level, researchers at The University of Texas at Austin have discovered. (Alcoholism: Clinical & Experimental Research, 12-00)
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