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Scientists may have found dark matter traces in Andromeda Galaxy (Video)
Scientists may have found dark matter traces in Andromeda Galaxy (Video)

Scientists may have found dark matter traces in Andromeda Galaxy (Video)

Nasa’s Fermi Gamma Ray telescope has found a signal originating from the neighboring Andromeda galaxy.

The signal detected by NASA’s Fermi Gamma-ray Space Telescope is similar to gamma-rays observed at the center of the Milky Way, and could be coming from several sources that have yet to be determined.

Gamma rays are the highest-energy form of light, produced by the universe’s most energetic phenomena. They’re common in galaxies like the Milky Way because cosmic rays, particles moving near the speed of light, produce gamma rays when they interact with interstellar gas clouds and starlight.

Surprisingly, the latest Fermi data shows the gamma rays in Andromeda — also known as M31 — are confined to the galaxy’s center instead of spread throughout. To explain this unusual distribution, scientists are proposing that the emission may come from several undetermined sources. One of them could be dark matter, an unknown substance that makes up most of the universe.

Agencies/Canadajournal




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