Tattoos and body piercings are so ubiquitous in western societies that they are more cliché than edgy, but social scientists in France say they may be more than fashion trends - they may be harbingers of doom. Individuals who get them are also more likely to engage in risky behaviors that include substance and alcohol use.
The second-largest mass extinction in Earth's history, the so-called Late Ordovician mass extinction, coincided with a short but intense ice age during which enormous glaciers grew and sea levels dropped.
The Late Ordovician mass extinction occurred about 450 million years ago and was related to climate change, that has been known, but exactly how the climate change produced the extinction has not. A team led by scientists at the California Institute of Technology (Caltech) has created a framework for weighing the factors that might have led to mass extinction and has used that framework to determine that the majority of extinctions were caused by habitat loss due to falling sea levels and cooling of the tropical oceans.
In a development that would be bad for the U.S. Department of Energy but good for solar power worldwide, a new process developed by scientists at the University of Cambridge has the potential to drive down the cost of manufacturing solar-grade silicon and boost use of photovoltaic devices.
Widely accepted theories of dark matter, a mysterious invisible substance that can only be detected indirectly by the gravitational force it exerts, expect the solar neighborhood to be filled with the stuff - but it isn't, at least as far as can be detected.
Don't get too excited but 200 activists are going to jump off Mt. Kilimanjaro in Tanzania.
These aren't the usual pesky environmentalists, these are hang-gliding global activists, which really sounds like just an excuse to go hang-gliding but get permits to do it in cool places but it's still going to raise money for a worthy cause.
Billions of stars in our galaxy have acquired released planets that once roamed interstellar space. Those free agent worlds left the star systems in which they formed, and found a new home with a different sun.
If it sounds a lot like baseball, that's because it is, said Hagai Perets of the Harvard-Smithsonian Center for Astrophysics, making the most incongruent cosmological metaphor of April 17th, 2012.