In the early '90s, scientists encountered a particle so unusual, it seemed impossible. It is now called the OMG particle, and ...

IQAir, a company which tracks global air quality, ranked Toronto, New York and Washington DC as the cities with the worst air ...

July 9 marked 50 years since Tahoe Environmental Research Center founder Charles R. Goldman launched the John Le Conte on ...

Microplastic contamination has been a much-discussed topic over the last several years, but contamination from even smaller ...

Debates over the presence of microplastics in the human body highlight the challenge of studying something simultaneously invisible to the naked eye and abundant. How do you detect plastic in a human ...

BILLINGS — While Billings saw some rain over the past 24 hours, other parts of Montana looked and felt more like January than June, with snow falling in higher elevations and piling up across the ...

A rare late-June winter storm is expected to bring heavy snow, strong winds, and sharply colder temperatures to parts of the northern Rocky Mountains on June 28, with forecasters warning of hazardous ...

ROCKY MOUNTAINS — A matter of days is making a massive difference in the Rockies, where a snow day has interrupted summer. While towns at lower elevations are getting soaked by a chilly, steady rain, ...

A late-June cold blast is dropping winter snow on the high passes, bringing a hypothermia risk to the backcountry, with the storm peaking now and a summer freeze right behind it. The Northern Rockies ...

A large Saharan dust plume is traveling across the Atlantic and is expected to reach the U.S. this weekend. The dust will create hazy skies and vivid sunsets, first over Florida before spreading to ...

A distant star-forming galaxy nicknamed the “Shadow Blaster” could have sent a ghostly cosmic particle hurtling toward Earth. Astronomers believe they have traced the particle‘s origin to 11 billion ...