A mass grave in an artificial cave in the historical Maya city of Uxu has uncovered the skeletons of 24 people in an approximately 32 square meter artificial cave that had formerly been used as a water reservoir.

"Aside from the large number of interred individuals, it already became apparent during the excavation that the skeletons were no longer in their original anatomical articulation," says archaeologist Nicolaus Seefeld from the University of Bonn.

Translation:They were decapitated and dismembered around 1,400 years ago. 

Scientists have developed a strain of the Middle East respiratory syndrome coronavirus (MERS-CoV) that could be used as a vaccine against the disease, according to an upcoming paper.

Since MERS was first identified in June 2012, the World Health Organization has been notified of 108 cases of infection, including 50 deaths. Although the total number of cases is still relatively small, the case fatality rate and the spread of the virus to countries beyond the Middle East is alarming to public health officials. If the virus evolves the ability to transmit easily from person to person, a much more widespread epidemic is possible. Diagnostic assays and antiviral therapies for MERS have been described, but reliable vaccines have not yet been developed.

Mosquitoes may seem like just a nuisance but they are more deadly to humans than any other animal. The Anopheles mosquito, for example, transmits malaria.

Researchers are on the path to using  substances that occur naturally on human skin and block mosquitoes' ability to smell and target their victims
in order to grant people, pets and livestock an 'invisibility cloak' against these blood-sucking insects.

Robotic researchers are refining control algorithms for robotic swarms based upon data from five free online games that anyone can play.

In the games, players use simple commands to move groups of robots through mazes and around obstacles. Sometimes the goal is to push a larger object to a particular spot. Other times the goal is to move the collective to a target or to have it assume a specific shape. 

Each time a game is played, the website collects information about how the task was completed. Becker said the data will be used to develop new control algorithms for robot swarms.

While solar energy is clearly the future, it isn't ready yet. Two large obstacles are cost versus efficiency and storage.

Wind power is advocated by a much smaller group, because its obstacles are far greater. A new paper adds evidence to that, noting that when the operation and construction of storage batteries are included, solar power numbers can work but wind cannot.

Most electricity in the United States is generated at power plants that run on coal and natural gas – fossil fuels that contribute to global warming by emitting large amounts of carbon dioxide. Solar and wind power are emissions-free and renewable, but depend on sunlight or wind to operate, and require storage to take advantage of peak energy production times.

Music makes people nostalgic, it has long been said that music can bring us back to specific points in time.  Young adults surveyed recently are even fond of and have an emotional connection to the music that was popular for their parents' generation, says a new psychology paper. 

While songs that were popular in our early 20s seem to have the greatest lasting emotional impact, music that was popular during our parents' younger days- and likely what they played around kids - also evokes vivid memories.