Earth
- Climate
Arctic passageways let species mingle
People aren’t the only animals likely to use passages that open up as the Arctic melts.
- Physics
The science of avalanches
High-tech instruments are helping researchers study how temperature can change the character — and danger — of an avalanche
- Physics
Halo of light crowns Antarctica
Ice crystals in the air bend sunlight into a ring over a research base in eastern Antarctica.
- Paleontology
Bubbles may have sheltered Earth’s early life
Bubbles formed on ancient shorelines offer scientists a new place to look for traces of early life.
- Climate
Report card shows which states are best prepared for climate change
A preparedness report card shows that some states aren’t ready for the extreme heat, droughts, wildfires and flooding that may come with climate change.
- Astronomy
Exoplanets need right stuff to be habitable
The elemental makeup of a star can reveal whether planets in its solar system could support sustained plate tectonics, a requirement for Earth-like life, researchers propose.
- Agriculture
Number of wild bees drops where they’re needed most
Wild bee abundance in the United States is lowest in agricultural regions, according to a new model.
- Earth
Solid inner, inner core may be relic of Earth’s earliest days
Earth’s innermost inner core may have formed billions of years earlier than previously thought, shortly after the planet’s accretion.
- Animals
Fog ferries mercury from the ocean to land animals
Scientists have traced mercury in the waters of the Pacific Ocean to animals, including mountain lions, in California.
- Climate
Why some rainbows are all red
Red rainbows are caused by the position of the sun in the sky, appearing more often during sunrise and sunset, new research finds.
- Climate
Fireworks brighten the sky but dampen the view
Fireworks and other pyrotechnics severely reduce visibility during celebrations such as New Year’s Eve and Guy Fawkes Day, researchers report.
- Climate
Ice rafts traveling farther and faster across the Arctic Ocean
Climate change may be causing Arctic sea ice to travel farther and faster than it did 15 years ago, taking pollutants and other material along for the ride.
