NASA's Fermi Gamma-Ray Space Telescope has unveiled a previously unseen structure centered in the Milky Way. The feature spans 50,000 light-years (roughly half of the Milky Way’s diameter) and may be the remnant of an eruption from a supersized black hole at the center of our galaxy. The structure spans more than half of the visible sky, from the constellation Virgo to the constellation Grus, and it may be millions of years old.
(13 December 1972) --- Scientist-astronaut Harrison H. Schmitt is photographed working beside a huge boulder at Station 6 (base of North Massif) during the third Apollo 17 Extravehicular Activity (EVA-3) at the Taurus-Littrow landing site. This picture was taken by astronaut Eugene A. Cernan, Apollo 17 commander.