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www.astropage.eu Fermi-Beobchtungen von Zwerggalaxien liefern neue Einblicke in Dunkle Materie Fermi's Large Area Telescope (LAT) is the spacecraft's main scientific instrument. This animation shows a gamma ray (purple) entering the LAT, where it is converted into an electron (red) and a positron (blue). The paths of the particles point back to the gamma-ray source. The LAT maps the whole sky every three hours. Credit: NASA / Goddard Space Flight Center Conceptual Image Lab

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