Visible without a telescope, γ Cassiopeiae has stood out for decades because it behaves unlike an ordinary massive star. Its ...

Explore the fascinating topic of the biggest star in the universe, delving into its characteristics, size, and significance ...

"Failed star" brown dwarfs may get a second chance to shine by colliding and merging to birth a new star.

Astronomers have finally cracked a decades-old mystery about red giant stars—how material from their deep interiors makes its ...

Astronomers have used the XRISM spacecraft to discover a star being devoured by a stellar companion, solving a century-old ...

A Bronx astronomer convicted of sexually assaulting and killing a 13-year-old girl after DNA linked him decades later to the ...

Because contemplating the vast, never-ending universe now feels infinitely more manageable than reading another update about ...

A star you can see with the naked eye has kept astronomers guessing for decades with its unusually powerful X-rays. Now, ...

A naked-eye star’s 50-year mystery is solved—its bizarre X-rays come from a hidden, feeding white dwarf.

Astronomers have spotted two giant planets forming around a young star—offering a stunning glimpse of how our Solar System ...

Pulsars are ultra-dense, rapidly spinning, and highly magnetized remnants of dead stars. They act like cosmic lighthouses, ...

Stellar streams are trails of stars that astronomers can study to solve mysteries about the history of our Milky Way galaxy ...