We've found a bunch of dwarf galaxies we thought didn't exist

 作者:侴爽荫     |      日期:2019-03-14 05:12:01
NASA, ESA, and E. Tollerud (STScI) By Jesse Emspak The so-called missing satellites problem has been solved. Based on our models of how dark matter clumps together, we know there ought to be more small satellite galaxies around the Milky Way than we have seen. But we haven’t been able to find them. Now, there is a simple answer: they were there all along,