Winds carry fumes of sulfur dioxide from chemical company to a nearby racetrack. Hundred of spectators were evacuated, some taken to hospital.
Vitamin D supplements intended to reduce some health risks of obesity may in fact by bad for teens' health, research suggests. Study indicated possible increase in cholesterol and triglyceride levels.
This year's El Niño could rival the 1997 event that caused weather havoc around the world, scientists say. Forecasters have been monitoring warming ocean temperatures in the eastern Pacific for three months.
A distant Jupiter-like exoplanet orbits in a system that may tell us what our solar system was like when it was young, astronomers say. Planet 51 Eridani b is the 'most Jupiter-like exoplanet' ever directly imaged, they say.
Fields of opium poppies may someday be replaced by vats of yeast as a source of painkilling medications, researchers suggest. They've bioengineered yeast to turn sugar into the pain medication hydrocodone in just days, they report.
A robot can build 'offspring,' test them and then create even better ones. It all happens without human intervention, researchers demonstrate.
Even in a crowded colony, individual ants use sense of smell to identify other ants as workers, queens - or possible enemies. Body odor provides a kind of 'social networking' in ant colonies, researchers explain.
A newly rediscovered species displays behaviors not seen in any other species of octopus, researchers say. The tiny animals are found in the Pacific off Central America.
A further two years of no new cases will be required to officially certify the continent polio-free, according to the UN. Eradication efforts began in 1988.
An Atlanta resident diagnosed with West Nile virus has recovered, health officials say. State residents are urged to take precautions to protect themselves from being bitten by infected mosquitoes.
Scientists sequence the genome of beer yeast to identify the origins of lighter, smoother lager beer. They find it's a hybrid of original ale yeasts and a different species.
The chance of a successful pregnancy and birth is higher when fresh - rather than frozen - donor eggs are used. However, experts say the differences are slight and both techniques are valuable,.
A review of studies confirms health risks from trans fats but finds less evidence of harm from saturated fats. However, experts caution against considering saturated fats completely in the clear.
Comet 67P gets "gassy" with dramatic outburst of melted ice and dust. As it prepare for its closest approach to the sun, it could display more such outbursts, astronomers say.
A prediction of global population by the end of this century suggests challenges lie ahead for the countries of the world. Huge increases could impact levels of global health and sustainability, researchers say.
The world's amphibians, already decimated by disease and habitat loss, face a new threat from parasites, researchers say. Species around the world are infected, they say.
Astrophysicists observe a distant galaxy as it looked 13.2 billion years ago. The discovery lets them peer into a time just 600 million years after the Big Bang, they say.
The universe has only half the energy it possessed two billion years ago, astronomers determine. Stars are fading and dying as the universe slowly heads to a dark and cold future.
Diets heavy in traditional Southern foods can lead to increased chances of heart attack or stroke, researchers say. Even small changes to diets could reduce those risks, they say.
More than 80 percent of adults in a survey say they have sexted. A study finds the behavior can increase sexual satisfaction within a relationship.
Droughts caused by global warming could lead to extinction of several butterfly species, experts warn. Many species are at risk even at lowest predicted warming rates, they say.
A company plans to put a 360-degree camera on the International Space Station to beam virtual reality images to people on Earth. A Kickstarter campaign aims to raise $500,000 to put the camera in orbit and fund its first year of operation.
One of the best and brightest of the annual meteor showers should arrive during good viewing conditions, experts say. Sky watchers in locations from from bright city lights could see 100 meteors per hour, they predict.
Naturally occuring enzyme could lead to a drug to take the "reward" out of smoking, helping people to quit, researchers say. Found in soil in tobacco fields, the enzyme has a voracious appetite for nicotine, they explain.
Whether an animal is hunter or the hunted is reflected in the evolution of its eyes, researchers find. Pupil shape identifies a creature's ecological niche, they say.
The space agency created Web-based tools to allow the public to take part in explorations of the Red Planet. Two websites, Mars Trek and Experience Curiosity, can take citizen scientists on a unique virtual journey.
A message written in the language of the time of Jesus has resisted attempts for its meaning to be discovered, researchers say. The message could be either secular or religious, they say.
A bizarre fish living in complete darkness carries its own 'fishing pole' on its head, researchers say. It's an evolutionary strategy meant to allow the fish to compete for scarce prey, they say.
Changes in the natural environment change how we perceive colors, a study finds. It's particularly true for the color yellow, they say.
A NASA satellite sees the moon's 'dark side' passing in front of the Earth. A dramatic view of the two was captured from a million miles away.