If a star has a mass of more than 0.08 solar masses (one solar mass is equivalent to the mass of our sun), nuclear reactions begin, and nuclear reactions cement the body's status as a star.

A star dies . When a star runs out of hydrogen fuel for nuclear fusion, its core begins to collapse. It enters the final stage of its life. At that point, the outer layers of the star expand and ...

For the first time, astronomers have imaged a star located outside the Milky Way galaxy. The subject, WOH G64, is a red supergiant situated roughly 160,000 light-years away in the Large Magellanic ...

Astronomers have captured the first close-up image of a star beyond our galaxy, taken during a dramatic moment near the end of the star’s life. In it, the “behemoth” star appears to puff out ...