RAPT Students in Harlem took turns delivering raps in class. Christopher Emdin, left, a professor at Columbia, joined them. By JOHN LELAND Published: November 16, 2012 They are an unlikely team of educational reformers.
T2 bacteriophage virus (seen in orange) attacking an Escherichia coli bacterium. Each phage consists of a large, DNA-containing head and a tail composed of a tube-like central sheath with several fibres.
Mild geomagnetic activity is already underway following a lesser CME impact on March 7th. Shortly after the cloud arrived, a burst of Northern Lights appeared over the US-Canadian border. Shawn Malone photographed the display from the shores of Lake Superior: