Dolphins sleep with half their brain

Sleeping with one half of the brain helps dolphins remain vigilant for periods as long as two weeks. Read about this study here.

Warmest September on record, tied with 2005

September 2012 ties with September 2005 as the warmest September on record, according to the National Climatic Data Center.

Global warming still on, says UK Met Office

According to the Daily Mail on October 13, UK Met Office data showed global warming stopped 16 years ago. Not so, said Met Office one day later.

Snake venom discovery could aid drug development

Those who need drugs to treat cancer, diabetes and high blood pressure might soon have a reason to thank a snake.

Celebrate Earth Science Week with these 9 big ideas

Earth Science Week starts October 14, 2012. This post has links to activities, plus the 9 big idea in Earth science. Enjoy and appreciate Earth!

Why so many (or so few) species?

Scientists assumed that, the longer time a group of organisms has to evolve, the more species there will be in that group. New research suggests this isn't necessarily so.

Aurora alert for night of October 13, 2012

Geomagnetic storm that spawned auroras in early morning hours today is still underway. Auroras or northern lights likely for those at northerly latitudes tonight!

El Niño trying to form, but just barely

Last spring, NOAA announced that an El Niño could develop by Fall 2012 and would likely influence the global weather conditions. What's up with El Niño?

How the octopus got its rings

It's one of the more venomous creatures in the Pacific Ocean. The blue-ringed octopus has a unique way of changing its look.

How does a bee colony replace its queen?

In response to the absence of the queen's scent, the workers begin a process of "emergency queen rearing."

Matching Donation Campaign

Exciting news! EarthSky received a $50,000 gift, with a request that it be used to collect matching funds. Please help us meet this match by donating to EarthSky today!

Would you consider

donating?

If you've already donated, we apologize for the popup and greatly appreciate your support.