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Editors of EarthSky

Monarch butterflies numbers down again this year

Reports suggest the number of monarch butterflies will be down almost 30% in 2012 as they make their annual trek from their breeding grounds in Mexico.

Size of black holes new theory

Scienties from the UK and Australia have developed a new theory about the size of black holes, as described in a release from the University of Leicester.

New type of landform on Mars: sand dunes made of rock

A landform on Mars that is odd and previously unseen could provide a window into its geological history, according to new research by geologists.

Insights from MESSENGER spacecraft after one year in orbit

The MESSENGER spacecraft completed its one-year primary mission in orbit around the planet Mercury on March 17, 2012. New findings released today.

Study: Oil from Deepwater Horizon spill entered Gulf food chain

A new study confirms that oil from the 2010 BP Deepwater Horizon spill made it into the Gulf’s food chain through the tiniest of organisms, zooplankton.

Monarch butterflies down again this year, says Texas A&M expert

Unlike their colorful wings, the future of Monarch butterflies may not be too bright. Their numbers are expected to be alarmingly down again this year.

Avoiding electrolyte failure in nanoscale lithium batteries

Scientists are working toward avoiding electrolyte failure in nanoscale lithium batteries. The results are key to the development of autonomous MEMS.

Mysterious ‘Red-deer Cave people’ fossils found in China

Fossils from two caves in southwest China have revealed a previously unknown Stone Age people. These cave people hunted the now extinct red deer.

BPA could affect reproductive capabilities, cause infection of the uterus

Researchers found evidence that BPA chemicals could disrupt reproductive chemicals in such a way as to provoke uterine infections.

Antivirus and more help combat identity theft

Having antivirus and more on your computer greatly reduces your chances of identity theft, according to a study led by a criminologist.