Triplet of ‘Ghostly’ Galaxies Hints at What Dark Matter Is — and Isn’t
Triplet of ‘Ghostly’ Galaxies Hints at What Dark Matter Is — and Isn’t Read More »
About 65 million light-years from Earth, three galaxies don’t look quite right. They aren’t whirlpools bursting with light, but pallid objects dimly illuminated by a smattering of stars. “They have this ghostly appearance,” said Michael Keim, an astrophysicist at Yale University. And this isn’t even the weirdest thing about them. Dark matter is the invisible […]











