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AstronomyA Cosmic Crisis?
Astronomers appear to have a heavenly crisis on their hands, and it concerns material they can't even detect.
By Ron Cowen -
Brain scans reveal human pheromones
Male and female brains react differently to two putative pheromones, compounds related to the hormones testosterone and estrogen.
By John Travis -
NO says yes to breathing fast
A form of nitric oxide tells the brain when the body needs to breathe faster.
By John Travis -
Vesicles may help embryos take shape
Chemicals that shape developing embryos may hitch rides in vesicles called argosomes.
By John Travis -
Drunk drivers tow mental load
Individuals convicted of drunk driving often have a history of not only alcohol but also illicit drug abuse and other psychiatric disorders.