Los psicópatas (ahora conocido como trastorno de la personalidad antisocial en el DSM- IV ) ) son personas que no tienen conciencia o la empatía. Se estima que entre el 1 % y el 3 % de los individuos de la sociedad encaja las características de un psicópata , pero sólo una pequeña parte de esas personas están en prisión por conducta criminal.

How Does the Brain Work

This episode of NOVA scienceNOW delves into some pretty heady stuff, examining magic and the brain, artificial intelligence, magnetic mind control, and the work of neuroscientist and synesthesia researcher David Eagleman.

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Does telepathy exist? Scientists have argued for years about the existence of telepathy, the claimed ability to transmit words or thoughts to another mind outside of the channels of the recognized senses.

Phoenix Mars Lander - 01:55

With behind-the-scenes access, NOVA scienceNOW covers the Mars lander Phoenix's thrilling descent to the martian surface and its critical early days of operations. Phoenix will dig into the permafrost to obtain samples of martian dirt and ice for analysis in onboard labs, seeking any evidence that the Red Planet might once have sustained microbial life—or perhaps still does.