Elusive dark matter around clusters of galaxies often clumps into cigar shapes, new observations show. The discovery could help scientists finally understand what makes up dark matter, which is ...

MONTAGNE: Those dark-green shapes hold valuable archaeological information. Ancient structures were often surrounded by trenches for protection and drainage. Even after the structures are gone ...

Elusive dark matter around clusters of galaxies often clumpsinto cigar shapes, new observations show. The discovery could help scientists finally understand whatmakes up darkmatter, which is the ...

Researchers have observed mysterious "dark ovals," each roughly the size of the Earth, appearing on the polar regions of Jupiter on the ultraviolet spectrum. The gas giant, whose Great Red Spot ...