Astronomers theorize that an as-yet-unidentified form of matter is responsible for 90 percent of the gravity within galaxies and clusters of galaxies but because it is detected via its gravity and not its light, they call it "dark matter." 

The winners of the 2012 Semantic Web Challenge (SWC), determined by a jury from both academia and industry, were announced at the International Semantic Web Conference held in Boston. The challenge and allocated prizes were sponsored by Elsevier. 

 In 2003, the SWC was set up to showcase the very latest in semantic web technology and every year the final rounds of this competition take place at the annual International Semantic Web Conference. Semantic Web Challenge contestants competed in any of two challenge categories: 'Open Track' and 'Billion Triples Track'. 

A monster black hole has been detected.  With 17 billion solar masses, it is significantly heavier than models predict and could be the most massive black hole known to date. 

 Astronomers believe there is a super-massive black hole at the heart of every galaxy and its mass ranges from several hundred thousand solar masses to a few billion. The black hole that has been best investigated  sits at the center of our galaxy, the Milky Way, and has around four million solar masses.

Merck Serono, a division of Merck, has donated its 100 millionth praziquantel tablet to the World Health Organization (WHO).

People follow patterns. If you were projecting a future for New York City in the early 1980s, you would have rightfully anticipated a Kurt Russell movie where the city is walled off from the rest of the country because the crime problem was rampant. Homicide moves through a city in a process similar to infectious disease, according to a new study that may give police a new tool in tracking and ultimately preventing murders.

Evolutionarily speaking, most of the harmful mutations that still exist in people are recent, which makes the case that nature is still out to get us, even in modern times.

A study dated the age of more than 1 million single-letter variations in the human DNA code and revealed that 86 percent of the harmful protein-coding mutations of this type arose in humans just during the past 5,000 to 10,000 years. These kinds of mutations change one nucleotide – an A, C, T or G – in the DNA sequence.