Birds of the Caves II Joan Miro: my favorite aspect of this piece is the wobbly grid in the background. The irregular blobs are cool too. The large black negative spaces draw the audience's eyes through the piece.
This computer model shows the connectivity of the neurons and 30 million connections that make up a single neocortical column - the basic building block of the cortex. The different colours correspond to different levels of electrical activity.
A new finding by Harvard stem cell biologists turns one of the basics of neurobiology on its head -- demonstrating that it is possible to turn one type of already differentiated neuron into another within the brain.