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Studies of data from the Fermi Gamma-Ray Space Telescope have revealed new and striking features of the Milky Way, from the giant structures known as the Fermi Bubbles to a spherical glow of bright gamma-ray emission from around the Galactic Center. The latter has garnered great interest as a possible signal of annihilating dark matter, but new analyses suggest that it may instead be the first sign of an unexpected pulsar population with unusual properties. I will discuss the techniques used to unveil and study these signals, and what they may reveal about the deep history of our Galaxy. |
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