Dark matter annihilation might power the first luminous stars in the Universe. This type of stars, known as Dark Stars, could form in 10^6-10^8 solar mass protohalos at redshifts z around 20, and they ...
A galaxy floating alongside our own some 380,000 light-years from Earth could offer fresh clues in the 90-year-long quest to determine the nature of dark matter, the invisible glue that holds galaxies ...
Strange behavior in a massive cluster of merging galaxies could be explained if dark matter, the universe's most mysterious stuff, can collide with itself. However, the most favored model of cosmology ...
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