The local universe may be expanding more slowly than previously thought, a discovery that could relieve a pesky discrepancy ...

The discovery of CDG-2 began when a team of astronomers investigated tight groupings of stars called globular clusters, which ...

Astronomers have tracked a powerful blast of radiation back to its source, finding a neutron star collision within colliding ...

A subtle gravitational-wave “hum” from merging black holes may help settle the cosmic fight over how fast the universe is ...

A galaxy made almost entirely of dark matter, an elusive form of matter that doesn’t interact with light, was spotted by ...

Using the Hubble Space Telescope, astronomers have discovered a new type of cosmic object, a cloud of dark matter and gas that contains no stars. The object, located around 14 million light-years from ...

Astronomers have detected a ghostly galaxy that is almost completely made of dark matter. The faint object was revealed by just four globular star clusters hiding in the Perseus cluster.

NASA's Hubble Space Telescope has discovered a tidal disruption event 300 million light years away. The donut shaped remains ...

Almost 28 years after it was launched, NASA’s intrepid Hubble Space Telescope just keeps illuminating distant reaches of the universe. Thanks to a phenomenon called gravitational lensing, Hubble has ...

Hubble discovers CDG‑2, a galaxy 99.9% dark matter, revealing a cosmic phantom and reshaping our understanding of galaxy ...

A Nasa team using the Hubble Space Telescope found an object in space never recorded before, nicknamed "Cloud-9." Cloud-9 is a starless, gas-rich, dark-matter cloud considered a "relic" or remnant of ...