A Chinese perspective on autumn

In Chinese thought, autumn is with the direction west, considered to be the direction of dreams and visions.

Why Earth has 4 seasons

Some assume our planet’s changing distance from the sun causes the change in the seasons. That’s logical, but not the case for Earth.

What is a hurricane storm surge?

Of all the hazards that hurricanes bring, storm surge is the greatest threat to life and property along the coast.

Satellite map showing route of ascent of Mount Everest, from the Nepalese side.

Satellite data helps climbers ascend Mt. Everest

Data from ESA’s Copernicus Sentinel-2 satellite help climbers negotiate a treacherous glacier on the route to Mt. Everest’s summit.

Earth’s glaciers and ice sheets are melting

Several new studies released in recent weeks paint a dire picture of the ongoing melting of Earth’s freshwater ice sheets and glaciers, 99% of which are found in Greenland and Antarctica.

Northern Hemisphere just had its hottest summer on record

Not only was August 2020 the 2nd-warmest August on record, but the Northern Hemisphere had its warmest summer on record, and the globe as a whole had its 3rd-hottest 3-month season.

Red skies behind a bridge.

Why are skies so red over the U.S. West this week?

Perhaps you’ve seen the photos of the eerie red skies over San Francisco and other cities in the U.S. West this week as massive ongoing wildfires rage. But why red exactly?

What is a fogbow?

Fogbows are rainbows’ cousins – made by much the same process – but with the small water droplets inside a fog instead of larger raindrops.

5 myths about lightning debunked

NOAA debunks some popular myths about lightning.

Hurricane Hanna shrinks Gulf of Mexico dead zone

The Gulf of Mexico dead zone is much smaller than usual this year because Hurricane Hanna stirred up the area of low-oxygen water.