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 ...

Astronomers have revealed a new type of cosmic object called Cloud-9 — a dim, starless gas cloud anchored by a massive dark matter halo that may be the first-confirmed failed galaxy. When you purchase ...

Astronomers announced the discovery of a starless cloud of hydrogen gas, a pristine relic of the cosmos that is almost as old as time itself. By Katrina Miller The universe continues to surprise those ...

You can’t see, feel, hear, taste or smell them, but tiny particles from space are constantly raining down on us. They come from cosmic rays — high-energy particles that can originate from exploding ...