The Milky Way galaxy is orbited by more than 150 globular star clusters - balls of hundreds of thousands of old stars dating back to the formation of the galaxy. In the constellation of Sagittarius (The Archer), the French comet hunter Charles Messier found one such cluster and it was given the designation Messier 54.

For more than two hundred years after its discovery Messier 54, was thought to be similar to the other Milky Way globulars, but in 1994 astronomers determined that it was actually associated with a separate galaxy — the Sagittarius Dwarf Galaxy. It was found to be at a distance of around 90,000 light-years, more than three times as far from Earth as the galactic center.

Like most young people, the first job is not the best job and they will often leave when a better opportunity comes along. 

There is strong demand for nurses so it's no surprise that there is turnover among young ones. Once they prove they can do the job, hospitals and practices are going to recruit them and pay higher salaries, because they are not paying training costs.

A study in the current issue of Policy, Politics&Nursing Practice reveals that an estimated 17.5 percent of newly-licensed RNs leave their first nursing job within the first year and one in three (33.5%) leave within two years. The scholars found that turnover for this group is lower at hospitals than at other health care settings.

African American women and their female children have the highest obesity prevalence of any demographic group in the United States, and they are also most likely to underestimate their body weight, according to a paper from Rush University Medical Center.

The authors say cultural norms for body size may prevent awareness among many African American women about the potential risks of obesity and the benefits of weight loss.

Before they reach young adulthood, many children in the United States will experience their parents separating, divorcing, finding another partner or getting remarried. 

When families change structure, it is more common for children to exhibit behavior problems, such as aggression and defiance, and a new psychology paper say that behavior problems in children increased in high-income families most, and that children's age also played a part in their likelihood of having behavior problems.

Moving from a single-parent family into a step-parent family then improved children's behavior in higher-income families but not in lower-income families.

For decades, doctors have developed methods to diagnose how different types of cells and systems in the body are functioning. Now scientists have adapted biomedical techniques to study the vast body of the ocean.

In a Science paper, scientists demonstrate that they can identify and measure proteins in the ocean, revealing how single-celled marine organisms and ocean ecosystems operate.

Biologists have found that increasing the amount of the gene
AMPK
that can slow the aging process throughout the entire body when activated remotely in key organ systems.