Physicists are quietly entertaining one of the strangest ideas in modern cosmology: that the cosmos we see might be only half the story. In this picture, a separate “dark” event, a kind of second Big ...

Most of the matter and energy in the cosmos does not shine, yet its presence is written into the way galaxies twist, stretch, and smear across the sky. By treating those warped galaxies as data rather ...

Illuminating the Dark. Mysterious dark matter and neutrinos, formed moments after the Big Bang, are the focus of a new cosmological collaboration between USC, UC Riverside and the Carnegie Science ...