The end of the universe in simulations

Researchers at the University of Maryland just tried to simulate the the Big Crunch - the end of the universe. Who knew all you needed was gold and plastic?

Steven Platnick: Clouds both cool and warm Earth

Some clouds help cool the Earth, but other clouds help keep Earth warm – in part depending on how high up they are in our atmosphere.

After 10,000 year absence, wildfires have returned to Arctic tundra

The huge stock of carbon contained in tundra could increase atmospheric CO2 drastically, when released by a fire. Read more about wildfires.

Mining and cancer linked in Appalachia

A July 2011 study finds increased cancer rates near the Coal River Valley mountaintop removal in West Virginia. Read more about mining and cancer.

Tamarisk leaf beetles along the Colorado River

Tamarisk leaf beetles - a non-native species - are eating and killing non-native, invasive salt cedar along the Colorado River. Read more here.

Tropical Storm Don forms in Gulf of Mexico

Tropical Storm Don is aimed for Texas by Friday or Saturday. The National Hurricane Center forecasts it will become a strong tropical storm with winds around 65 mph.

Ancestors may have walked upright four million years ago

Ancient footprints in Tanzania reveal features essential for an upright gait. Read more about our ancestors walking upright earlier than previously believed.

A skyscraper + ferris wheel + zoo. Wait…what?

Influx Studio hopes a rare architectural combination of skyscraper, ferris wheel and zoo will inspire Buenos Aires residents to take action that helps wildlife.

Why fish farming gets a bad rap in America

In America, fish farming or aquaculture usually elicits a neutral or negative response from people. Why is this? Find out on EarthSky.

Aging brains are different in humans and chimps

Evolution of human longevity led to both a large brain and brain shrinkage, compared to chimpanzees, say researchers. Read more on aging brains.