Fantasizing about sex with two women is common but fantasizing about being urinated on - called a golden shower - is not.

That's just one of the findings from a research project on sexual deviation undertaken by scholars at Institut universitaire en santé mentale de Montréal and Institut Philippe-Pinel de Montréal.

Deviant sexual fantasies are addressed in numerous speculations and conjectures by psychologists but atypical fantasies (paraphilias) are so subjective they aren't really defined. The fifth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) refers to "anomalous" fantasies, while the World Health Organization talks about "unusual" fantasies in defining paraphilias.

4 billion light-years away, inside a collection of nearly 500 galaxies called Pandora's Cluster, are the faint, ghostly glow of stars gravitationally ripped apart several billion years ago.

The scattered stars are no longer bound to any one galaxy and drift freely between galaxies in the cluster. By observing the light from the orphaned stars, Hubble astronomers have assembled forensic evidence that suggests as many as six galaxies were torn to pieces inside the 
Abell 2744
cluster over a stretch of 6 billion years.

Biology can be inspirational.  The spiral ramps in multistory parking garages, the way they are stacked and connecting parallel levels, are replications of helical structures found in a ubiquitous membrane structure in the cells of the body - Terasaki ramps in an organelle called the endoplasmic reticulum (ER), a network of membranes found throughout the cell and connected to and surrounding the cell nucleus.

A team of researchers have described endoplasmic reticulum geometry using the language of theoretical physics in Physical Review Letters.

Humans are primarily social creatures - Thoreau may have pretended he wanted to sit among nature by himself and write a book but he was in a house built by someone else, paid for by someone else, with clothes made by someone else, and writing a book that would be published by someone else.

People band together in groups to be stronger - about causes or for actual defense. How to prompt people to become social rather than anti-social is one of the central goals of game theory. 

Tropical Cyclone Nilofar is closing in on the border between Pakistan and northwestern India and NASA's Terra satellite caught it while it passed overhead from space.

Wind shear continued to affect the storm and from their image it looks more like a comet than a tropical cyclone.