The collapse of a star at the end of its life cycle could lead not only to a black hole but also to an ultra-compact star – a ...

A black hole is supposed to be the last word in stellar collapse: matter falls inward, spacetime caves in, and a singularity ...

A nearby dwarf galaxy poses an intriguing mystery: How is it able to form brilliant star clusters without the dusty, gas-rich environments found in larger galaxies? The answer, astronomers believe, ...

When a star is born, it doesn’t emerge in isolation. Instead, it forms inside a large, chaotic cloud of gas and dust. Around it, a flat disk of spinning material takes shape. This protoplanetary disk ...

How does a star form from the cold, turbulent gloom of a molecular cloud? Three years have already passed since the James Webb Space Telescope has been revealing how, most recently by removing the ...