"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Even though dark matter is invisible—and, technically, still hypothetical—it is thought to be the driving ...

Scientists from Caltech have developed ‘a new type of matter,’ which they are calling polycatenated architected materials, or PAMs. This new matter doesn’t occur naturally, and uses chainmail-like ...

Add Yahoo as a preferred source to see more of our stories on Google. Spiral galaxies, like Messier 77 shown here, helped astronomers learn about the existence of dark matter. NASA, ESA & A. van der ...

If a new research paper’s theory is correct, then there should be a much higher population of very small, very luminous galaxies in the early universe. With everything we learn about the nature of ...

Dark matter clumps could act as stellar lampshades, drifting between Earth and distant stars, dimming them by an almost imperceptible amount, a new study suggests. If this idea is correct, such "dark ...