Study Finds Atrazine Pesticide Doesn't Impact Aquatic Plant Life

A recent study found that the herbicide atrazine, common for weed control in corn and sorghum...

College Student Marijuana Use Highest Since Survey Began

Both daily and less frequent use of marijuana among college students has risen sharply, to the...

Neuron Responsible For Alcoholism Found

Scientists have pinpointed a population of neurons in the brain that influences whether one drink...

Frogs Make Irrational Choices - And What Means For Understanding Animal Mating

In the attempt to choose a mate, it's no surprise that females will select the more "attractive"...

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Microbloggers are having trouble being interesting, a new study says.    So they write more often, just to have something to say.  The top 5 most frequent postings on microblogging sites like Twitter, Jaiku and Mobile Facebook are “working,” “home,” “work,” “lunch,” and “sleeping”.  Hardly the stuff that would seem enchanting to most - and it isn't.   Most newcomers drop out soon after registering.
Some scientists believe that Mars is red due to rocks being rusted by water that once flooded the planet.

That is not the case, say recent laboratory studies which show that red dust may be formed by ongoing grinding of surface rocks and liquid water need not have played any significant role in the formation process.  The data were presented at the European Planetary Science Congress by Dr Jonathan Merrison.
SHP-2, a common biological protein molecule, is central to placental growth and could hold the key to mitigating growth restriction of babies in the womb,  according to research is published today in Endocrinology.
In a survey conducted about patients’ expectations of electronic retina prostheses (retina implants) a decade ago, visually impaired or blind patients with degenerative retina conditions stated they would be happy if they were able to regain some mobility and recognize faces and read again.

According to the presentations given at the international symposium “Artificial Vision” September 19th, 2009 at the Wissenschaftszentrum Bonn, that's gotten a lot closer.
Scientists at a research institute in Austria are trying to figure out how life might evolve under different biochemistry conditions and with exotic solvents than what would exist on a world similar to Earth - think sulphuric acid instead of water.

Traditionally, planets that might sustain life are looked for in a ‘habitable zone’ - the region around a star in which Earth-like planets with carbon dioxide, water vapor and nitrogen atmospheres could maintain liquid water on their surfaces.
Black holes are invading stars, according to a new hyposthesis for the origin of the bright flashes in the universe that are one of the biggest mysteries in astronomy today. 

Those flashes, known as gamma ray bursts, are beams of high energy radiation produced by jets of plasma from massive dying stars.   The current model for these cosmic 'jet engines' involves plasma being heated by neutrinos in a disk of matter that forms around a black hole, which is created when a star collapses.