Artist's concept shows the "naked-eye" GRB close up. Observations suggest material shot outward in a two-component jet (white and green beams). Unparalleled data from satellites and observatories around the globe show that the jet from a powerful stellar explosion March 19 (2008) was aimed almost directly at Earth. The event, called a gamma-ray burst, became bright enough for human eyes to see. The observations give astronomers the most detailed portrait of a burst ever made. NASA's Swift satellite detected the explosion - formally called GRB 080319B - at 2:13 a.m. EDT that morning and pinpointed its position in the constellation Bo繹tes.