There is a mysterious glow coming from the middle of our galaxy – and scientists say it could help solve one of the universe’s deepest mysteries.

The diffuse glow of gamma rays towards the heart of the Milky Way has been unexplained for decades. But researchers believe that it could be the result of colliding pieces of dark matter , or the spinning of neutron stars.

If the explanation is the former, and the glow comes from dark matter, it might be the first ever proof that it actually exists.

“Dark matter dominates the universe and holds galaxies together. It’s extremely consequential and we’re desperately thinking all the time of ideas as to how we could detect it,” said co-author Joseph Silk , a professor of physics and astronomy at Johns Hopkins, in a statement.

“Gamma rays,

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