An interesting site for physics teacher, provided by the American Association of Physics TeachersAmplify’d from www.compadre.orgThe Physics Front provides high quality resources for the teaching ...
Using data from NASA's Fermi Gamma-ray Space Telescope, scientists have recently discovered a gigantic, mysterious structure in our galaxy. This feature looks like a pair of bubbles extending above and below our galaxy's center. Each lobe is 25,000 light-years tall and the whole structure may be only a few million years old.