Enjoying EarthSky? Subscribe.

201,018 subscribers and counting ...


Science Wire | Jan 27, 2016

Is El Niño at its peak?

This year’s El Niño has likely reached its peak, say scientists, but given that Earth is hotter than in 135 years, there are no guarantees.

X-ray aurora caught by ESA's Integral space observatory on November 10, 2015.
Science Wire | Jan 26, 2016

X-ray view of Earth’s aurora

An ESA space observatory was looking for something else when it caught these X-ray images of an aurora.

A collection of the Witwatersrand diamonds. Image credit: Wits University
Science Wire | Jan 24, 2016

Ancient diamonds hold clues to primeval Earth

New insights into ancient Earth’s early structure from diamonds formed 3.5 billion years ago. A scientist called diamonds “the perfect little time capsules.”

January 24, 2016 6.8-magnitude earthquake in southern Alaska.  Image via USGS.
Science Wire | Jan 24, 2016

Magnitude-7.1 earthquake in Alaska

There were no reports of injuries, but the powerful earthquake left a fair amount of cleanup to do, plus some frightened people in Alaska.

Freezing rain in Kentucky. Image Credit: NWS/NOAA
Science Wire | Jan 23, 2016

The science of freezing rain

The phenomenon of freezing rain: What causes the dangerous winter weather element that can paralyze cities.

Science Wire | Jan 23, 2016

2015 hottest year on record, by far

“What we have seen this past year will likely be routine in about 15 years, although regionally the details will vary considerably,” says climate expert Kevin Trenberth.

(c) Joshua Nowicki Photoography
Science Wire | Jan 20, 2016

How to take photos of snowflakes

Try it yourself! With a little preparation and a good camera and with a macro lens, you can take your own photos of snowflakes.

View larger. | January 11, 2016. Image credit: NASA
Science Wire | Jan 20, 2016

View from space: Mississippi River flooding

Two satellite images show the contrast between the flooded Mississippi River this month and the same area last year. Check out the difference!

Drought-affected corn in eastern Colorado, via
Science Wire | Jan 18, 2016

Extreme weather lowers global crop yield

Researchers found that extreme heat and drought between 1964 and 2007 account for about a 10% decline in global cereal crop production.

Blogs | FAQs | Jan 18, 2016

What are cloud streets?

Cloud streets are long rows of cumulus clouds that are oriented parallel to the direction of the wind. Check out these cool images!