"WIMPs are still the leading candidate for dark matter, but billions of dollars of experiments have been done, only getting stronger and stronger upper limits, so alternative scenarios have to be ...

Astronomers have identified a new ultra-diffuse galaxy that appears to defy one of the fundamental assumptions of modern cosmology: the presence of dark matter. The galaxy, dubbed FCC 224, lies at the ...

The fast-moving gas cloud could help explain the so-called missing satellite problem, if the object is what scientists think it is. Reading time 2 minutes Astronomers may have just stumbled across a ...

Hubble has revealed a strange cosmic object called Cloud-9, a dark matter–dominated cloud with no stars at all. Scientists believe it is a “failed galaxy,” a leftover building block from the early ...

Add Yahoo as a preferred source to see more of our stories on Google. If dark matter particles decay, then scientists could hunt for signs of this process, including X-ray or gamma-ray radiation or ...