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Three detectors tracking gravitational waves emitted by a merger of two black holes have brought science a little closer to locating a gravitational wave's birthplace in space. 

Gravitational waves are ripples in space and time created when two massive, compact objects such as black holes merge. The new detections were made on August 14, 2017 by two gravitational-wave detectors in the United States - Hanford and Livingston at the Laser Interferometer Gravitational-Wave Observatory (LIGO), operated by Caltech and MIT - and by the Virgo Gravitational-Wave Observatory in Italy. This marks the fourth detection of a binary black-hole system.

In the wake of Hurricanes Harvey and Irma, many claims have been made that science denial, particularly as it relates to climate change, is primarily a problem of the political right.

But what happens when scientific conclusions challenge liberals’ attitudes on public policy issues, such as gun control, nuclear power or immigration?

A new paper claims that guns are only involved in 5 percent of suicide attempts but are 50 percent of suicide deaths. Despite everyone claiming to want to be data-driven about gun deaths, few are and this is no exception.  

Although 29 states and the District of Columbia allow marijuana use for medical purposes, there is no evidence it is medicine. Obviously some of the reason for that is because it's illegal and therefore hard to study, but regardless of the past it seems odd that scholars at Washington University School of Medicine in St. Louis surveyed medical school deans, residents and fellows, and examined a curriculum database maintained by the Association of American Medical Colleges (AAMC), and lament that medical marijuana is not being addressed in medical education.

In determining the gender of offspring, fathers may be getting shortchanged.

Because mothers can influence their offspring in a number of ways, from copulation to birth, while fathers have control over sperm only, it has long been assumed mothers are more important. In mammals, it is also believed that offspring sex ratios can only be determined by the mother, since fathers have always been thought to inseminate an equal proportion of X and Y sperm, having a random effect on offspring sex that they could not shift from equality, or 50:50.

Brain-computer interfaces can replace bodily functions to a certain degree and now they can even compose music. At least in a sense.

Derived from an established brain-computer interface method which mainly serves to spell - more accurately - write, a team writing in PLOS One has shown how they developed a new application by which music can be composed just through the power of thought. All that is needed is a special cap which measures brain waves, composition software. Before you start to think you'll be the next Haydn, keep in mind it can't create musical knowledge.