Rare ultra-faint dwarf galaxies beyond the influence of other galaxies show evidence that star formation was stifled long ago ...

Giant radio galaxies are cosmic megastructures that can span millions of light-years, making them some of the largest-known ...

Astronomers have achieved a groundbreaking feat by capturing the first clear image of a star in another galaxy. This ...

Inkathazos glowing plasma jets are shown in red and yellow. The starlight from other surrounding galaxies can be seen in the ...

A radio telescope in South Africa has unearthed a giant galaxy—dubbed a "cosmic megastructure"—with plasma jets that measure ...

Unprecedented discovery of fast radio bursts challenges existing theories. Astronomers detect repeated signals from an ...

Measurements of the distance to the Coma Cluster of galaxies find that it is millions of light years closer than the standard ...

Astronomers have unveiled surprising new details about a small galaxy, NGC 300, challenging existing theories on galaxy ...

New research suggests that dark energy isn't needed to explain the acceleration in the expansion of the universe — instead ...

A "cosmic CT scan" performed by scientists using two very different cosmic surveys has revealed the cosmos is less clumpy and ...

A flash of light called the Platypus has hallmarks of a mid-sized black hole shredding a star and a type of burst thought to be a stellar explosion.

Fast radio bursts (FRBs) are brief emissions of radio waves, lasting a fraction of a second but with as much energy as the ...