Largest stream of stars ever found could teach us about dark matter

The newfound Giant Coma Stream of stars stretches nearly 1.7 million light years across the cosmos, and it could have holes blasted through it by clumps of dark matter

​The newfound Giant Coma Stream of stars stretches nearly 1.7 million light years across the cosmos, and it could have holes blasted through it by clumps of dark matter The newfound Giant Coma Stream of stars stretches nearly 1.7 million light years across the cosmos, and it could have holes blasted through it by clumps of dark matter