Dark-matter galaxy detected: hidden dwarf lurks nearby?

Galaxy X: An entire galaxy—made mainly of dark matter—may be lurking just outside our own, scientists say.

So you think you can solve a cosmology puzzle? Dark matter news

(PhysOrg.com) -- Cosmologists have come up with a new way to solve their problems. They are inviting scientists, including those from totally unrelated fields, to participate in a grand competition. The idea is to spur outside interest in one of cosmology