Enjoying EarthSky? Subscribe.

208,720 subscribers and counting ...

Posts by Deanna Conners

Science Wire | Apr 18, 2016

Eastern monarch butterflies at risk of extinction, scientists say

Populations of the charismatic orange and black monarch butterfly have plummeted. Will they be extinct in 20 years?

Bingham Mine landslide April 10, 1963 via U. Utah
Blogs | Apr 10, 2016

This date in science: Landslide at Bingham Canyon Mine

On April 10, 2013 – three years ago today – an enormous landslide took place at the Bingham Canyon Mine in Utah. Amazingly, no one was hurt.

Science Wire | Mar 10, 2016

Scientists reconstruct supervolcanic eruption

Scientists estimate that slow, dense pyroclastic flows blanketed the southwestern U.S. after the enormous eruption at Silver Creek 18.8 million years ago.

Science Wire | Feb 29, 2016

Why do we need leap years?

We need leap years to help synchronize our calendar with Earth’s orbit around the sun and the actual passing of the seasons.

Science Wire | Feb 23, 2016

Extinction of giant herbivores changed global landscapes

Extinctions of large herbivores such as mammoths, mastodons, and ground sloths helped turn many open landscapes into forests, scientists say.

Science Wire | Feb 09, 2016

2016 Great Backyard Bird Count starts February 12

This year’s Great Backyard Bird Count runs from February 12–15. It’s free and easy to participate. Find out how.

Science Wire | Jan 29, 2016

How do snowflakes get their shape?

Depending on the temperature and humidity of the air where the snowflakes form, the resulting ice crystals will grow into a myriad of different shapes.

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!

Science Wire | Jan 12, 2016

2015 worst US wildfire year on record

Wildfires burned more than 10 million acres of land in the United States in 2015, a year marked by intense drought across much of the west.

Science Wire | Jan 05, 2016

New glimpse of geology under Antarctic ice

Using technology built to withstand the harsh winters, scientists have managed to map the volcanos, rifts, and basins hidden under West Antarctica’s ice sheet.