Dark matter represents the invisible substance believed to constitute more than one quarter of the entire universe.
This mysterious dark matter does not absorb, reflect, or emit any light, making direct detection extremely challenging.
Research into gamma-ray excess mapped by the Fermi Gamma-ray Space Telescope offers promising evidence for long-sought confirmation.
One hypothesis suggests colliding dark matter particles in this galactic region produce the gamma rays.
A comprehensive new analysis including advanced simulations found both hypotheses equally likely.
Understanding dark matter’s nature remains one of physics’ greatest challenges according to study authors.
Researchers have increased the odds that dark matter has been indirectly detected through this analysis.
This powerful ground-based gamma-ray telescope could differentiate emissions from the two potential sources.
Dark matter detection has proven difficult because it only interacts gravitationally with visible matter.
The gamma-ray excess spans the innermost 7,000 light-years of our galaxy approximately 26,000 light-years from Earth.
Dark matter particles may annihilate completely upon collision, generating gamma rays as byproducts.
Ordinary matter cooled and fell into central regions, dragging along some dark matter during formation.
Alternatively, the gamma-ray glow could come from thousands of previously unobserved millisecond pulsars.
The Fermi satellite confirmed such pulsars are gamma-ray sources that could explain the regional glow. – Reuters
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