Scientists discover low-mass microquasars can accelerate cosmic rays, reshaping theories on high-energy particle origins.

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

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

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 ...

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

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 ...

Astronomers have discovered an extraordinary new giant radio galaxy with plasma jets 32 times the size of our Milky Way.

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

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.

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