All Stories
- Astronomy
Exploding star is the brightest supernova ever seen
The brightest known supernova put out more energy than 500 billion suns.
- Astronomy
As first run of gravitational wave search winds down, rumors abound
Advanced LIGO has completed its first search for gravitational waves. Researchers are crunching the data as rumors swirl of a detection.
- Environment
PCB levels still high in Europe’s killer whales, smaller dolphins
PCBs banned for decades still show up at extremely high concentrations in Europe’s killer whales and other dolphins.
- Animals
Alien species fly on the wings of ducks and other waterbirds
Ducks, geese and other waterbirds can transport nonnative species and help alien invaders establish themselves.
- Science & Society
Insights into sexes’ differing responses to stress
Chronic stress takes its toll on everyone. One of our reporters follows a line of research suggesting that stress hits women harder (or at least differently) than men.
- Astronomy
Readers ponder mysterious origins of oxygen on comets and Earth
Readers pondered the origins of oxygen within a comet and during Earth's history.
- Life
Signs of food allergies may be present at birth
Overactive immune cells may prime babies for food allergies.
- Genetics
Drug candidate fails to improve symptoms of fragile X syndrome
A drug designed to treat fragile X syndrome has proven ineffective in clinical trials.
- Genetics
Drug candidate fails to improve symptoms of fragile X syndrome
A drug designed to treat fragile X syndrome has proven ineffective in clinical trials.
- Archaeology
Ancient stone tools raise tantalizing questions over who colonized Sulawesi
Hominids reached an island not far from hobbits’ home by around 200,000 years ago.
- Anthropology
Iceman has the world’s oldest tattoos
A more than 5,000-year-old European mummy gets his tattoos confirmed as world’s oldest.
- Animals
Capturing the wonders of hummingbird flight
Recent computer simulations reveal how hummingbirds manipulate the air around them to aid in flight.
