Astronomers have been puzzled by a faint but powerful glow of gamma rays shining from the center of the Milky Way galaxy for decades.
Researchers from Johns Hopkins University believe this strange light could be the first real clue to uncovering one of the universe's greatest mysteries - dark matter.
dark matter, the invisible substance thought to make up most of the cosmos.
This discovery may be the key to understanding the universe's greatest mysteries.
Author's summary: Galactic glow may reveal dark matter secrets.