science news

In 1985, scientists from the British Antarctic Survey found a giant hole in the ozone layer of Earth's atmosphere over the South Pole. This discovery prompted a largely successful international effort to ban CFCs, the chemicals largely responsible for man-made thinning of the ozone layer.

After 14 years of work and $5.5 billion, the LHC has survived faulty magnets, avian sabotage, and the threat of malevolent time travelers to finally collided its first particles.

With its annual output of over 330 million tons a year feeding animals, running cars, and decorating South Dakota tourist attractions, maize is clearly Americas most important crop. That's why the newly published complete corn genome could drastically change the food, automotive and plastic industries.

The perils of space flight number in the hundreds, from radiation exposure to the impact of micro-asteroids. But for astronauts who spend an extended amount of time floating weightlessly in the near-endless void of space, muscle atrophy remains the most common health problem. Thankfully, a shipment of RNA-treated worms may help scientists on the International Space Station solve that issue.

Thanks to a surface covered in liquid water, Jupiter's moon Europa serves as the prime suspect for bodies in our solar system harboring extraterrestrial life. For the most part though, speculation has assumed the life on Europa would be microscopic, similar to the chemical and rock-eating microbes found atop undersea volcanic vents on Earth. However, a new study estimates the level of oxygen in Europa's seas may be high enough to support fish-sized life. Hello, alien sushi.

Even though the combination of affluence and fertility drugs has raised the age at which many women give birth, children born to older women continue to suffer a disproportionately high rate of birth defects and genetic disease. Many of these problems result from the degradation of the area of the region of the egg around the nucleus.

To correct for those problems, a team of Japanese researchers has implanted the nucleus of an older woman's egg into the egg cell of a younger donor. This may fix the problem, but it also moves medicine closer to the ethically challenging creation of a person with three biological parents.

After years of lagging behind in the acceptance of scientific fact, the Vatican has not only caught up, but, with a conference this week, moved far past the boundaries of modern science. Yes, 376 years after they condemned Galileo for discussing a heliocentric solar system, and a mere 16 years after pardoning him for it, the Vatican will host a conference on astrobiology and the existence of extraterrestrial life.

In 2008, the International Association of Athletics Federations (IAAF) banned double amputee Oscar Pistorius from racing in the 2008 Summer Olympics. Later that same year, the ban was reversed. The back and forth centered on Pistorius' specially designed, spring-loaded, prosthetic legs. The IAAF argued that artificial legs designed especially for running gave Pistorius an unfair advantage against runners whose flesh-and-blood limbs didn't benefit from advanced engineering and space-age materials.

While an MIT study last year eventually led to the overturn of the original IAAF decision, no one had done a systematic study of amputee racers in general. Now, the MIT researchers that investigated Pistorius have released the results of a wider trial, and it turns out that specially designed prostheses don't actually help sprinters.

While most of the world looked forward to the switch from analog to digital TV for the sharper picture and clearer sound, astronomers around the US anticipated the changeover period for a totally different reason: clarity. In the brief period between the removal of analog television signals and the assignment of those frequencies to other devices like cell phones, astronomers will get their first look at a time in the universe that has been obscured from telescopes since Wally and the Beav roamed the airwaves.

While some companies hope an iTunes-like approach to distributing scientific papers on the cheap will get journal articles into the hands of people who need them, a new study shows that many medical students are already taking the Napster approach. A new paper studying the downloading habits of medical students found 125,000 users of peer-to-peer filesharing services who obtained some 5,000 scientific papers for free, circumventing the usual $30 fee.

Today, a company called DeepDyve launched the largest online rental service for scientific papers, which allows users to rent any article for just 99 cents. Journal articles currently trend toward the obscene ($30 or more), unless you're the lucky dude with a password for a university library. DeepDyve saw an opening in the market and made deals with major scientific publishers to stock 30 million (and growing) articles of tech, med, and scientific interest.

DeepDyve is part of a greater trend of getting scientific info back to the hardworking taxpayers who funded it.

In November of last year, scientists at Los Alamos National Laboratory switched on Roadrunner, the world's fastest computer. IBM and the Department of Energy built the machine to model nuclear explosions, but two new studies, both released today, are proof that the computer's massive power has been at least as devoted to peaceful science as to simulating thermonuclear weapons.

Naked mole rats are unique in many ways. For one, they're the only mammals with a hive mind, obeying their queen as if they were ants. Also, they feel no pain, an adaptation still not fully understood. But most importantly for us, they are the only animals that don't get cancer.

And now, a new study by scientists at the University of Rochester, New York, explains at last why these horrific animals, of all of the world's creatures, are immune to cancer.

We've all been there, late at night and early in the morning, forcing any and every last morsel of knowledge into our weak and exhausted brains. But when the test flops down on our desk, we just stare blankly at the forbidding blue book page. All that knowledge, gone. Either it didn't stick, or it has hid in some inaccessible crevasse deep in the brain.

Memory problems related to sleep deprivation have stymied everyone from college students getting ready for a biochemistry test to Army interrogators probing a tired detainee. Now, scientists have discovered that the memory loss associated with lack of sleep comes down to a single neurological pathway, opening up the possibility of a drug that fixes the memory of a tired brain.

Last month, scientists reported that a clinical trial for an HIV vaccine showed the first-ever success in preventing transmission of the virus. However, a number of HIV researchers believe that the enthusiasm for last month's vaccine results should be dampened in light of a more comprehensive review of the data.