NASA's Galaxy Evolution Explorer has lifted the veil off a ghost known to haunt the local universe, providing new insight into the formation and evolution of galaxies. 

The eerie creature, called NGC 404, is a type of galaxy known as "lenticular." Lenticular galaxies are disk-shaped, with little ongoing star formation and no spiral arms. NGC 404 is the nearest example of a lenticular galaxy, and therefore of great interest. But it lies hidden in the glare from a red giant star called Mirach. For this reason, NGC 404 became known to astronomers as the "Ghost of Mirach." 

When the Galaxy Evolution Explorer spied the galaxy in ultraviolet light, a spooky ring materialized. 

Researchers have carried out the largest study of differences between human and chimpanzee genomes, identifying regions that have been duplicated or lost during evolution of the two lineages. The study, published in Genome Research, is the first to compare many human and chimpanzee genomes in the same fashion.

The team show that particular types of genes - such as those involved in the inflammatory response and in control of cell proliferation - are more commonly involved in gain or loss. They also provide new evidence for a gene that has been associated with susceptibility to infection by HIV.

Three million Americans suffer from stuttering.  It afflicts  5% of all children and most eventually overcome it but childhood suffering from stuttering can be traumatic, producing educational, social, and occupational disadvantages.   Bruce Willis, Marilyn Monroe and Carly Simon all suffered from stuttering  as children and it can affect children of all ages but boys are three times more likely to stutter than girls.

A 19th-century historian traveling in southern Ohio later wrote about his first glimpse of Union Village, a Shaker community located near Harrison, Ohio: "When I caught sight of the first house, my opinion was confirmed that I was on the lands of the Shakers, for the …style of architecture, solid appearance and want of decorative art was before me.

A new study in the Journal of Marriage and Family found that serial cohabiters are less likely than single-instance cohabiting unions to result in marriage and, if serial cohabiters do marry, divorce rates are very high.

Daniel T. Lichter of Cornell University and Zhenchao of Ohio State University used data from the National Longitudinal Survey of Youth to track the experiences of serial cohabiters, or women who have cohabited with more than one partner.  

Fenfluramine, the appetite suppressant drug banned in the US in 1997 due to fears over its links to heart conditions, has been shown to have serious long-term effects. In a report published today in BMC Medicine, researchers have shown that people who stopped using fenfluramine eleven years ago had damaged heart valves up to seven years later.