Snow is made up of trillions of tiny ice crystals to make snowflakes, with not one alike. Here's how they form.

The planet has been shattering heat records for the past two years. That was expected to ease in January — and the fact that ...

The exosphere is the outermost layer of Earth’s atmosphere, where space begins. It has almost no air, and satellites orbit ...

Mariposa California's original daily updated online newspaper is the premier site for news and information on Yosemite, Mariposa, California and United States ...

Extensive evidence, including global temperature and sea ice data, shows Earth's climate is changing due to human activity.

But now, a team led by Rodney Ruoff at the Institute for Basic Science in Ulsan, South Korea, has shattered this paradigm, ...

El Niño and La Niña are climate phenomena that are generally associated with wetter and drier winter conditions in the ...

The Invisible Ropes of the Sky Jet streams are essentially fast-flowing air currents high above us, acting much like highways ...

A private company couldn't match the Boulder-based federal agency's work...but scientists worry the Trump administration could propose just that.

The normal rainfall amount for this point in the water year is 11.72 inches, she said. The above-average rainfall totals come in the wake of atmospheric river systems that have dumped rain on ...

Fresno could face below-freezing temperatures this week before an atmospheric river-fueled storm brings warmer temperatures ...

The average surface air temperature was 55.81 degrees Fahrenheit That's 1.42 degrees Fahrenheit above the 1991-2020 average ...