Astronomers have spotted another never-before-seen "nova" blaze to life in the night sky. This may be the first time that ...

An extremely luminous and hot blue star with a mass about 25 times that of the sun orbits with this black hole in a stellar marriage. This so-called binary system is named VFTS 243.

Specifically, the luminosity of a star is proportional to temperature to the fourth power. For instance, if two stars are the same size but one is twice as hot as the other in kelvin, the former ...

The farthest star ever detected, located behind what NASA describes as "a wrinkle in space-time," is more than twice as hot as the sun and about a million times more luminous.

Astronomers have known about LBV 1806-20 since the 1990s. At that time, it was identified as a "luminous blue variable star"; a relatively rare, massive and short-lived star. LBV 1806-20 is a ...

Scientists on Monday unveiled observations by the James Webb Space Telescope showing new details about such features around a luminous star called Fomalhaut in our own neighborhood of the Milky ...

A stronomers tend to exhaust superlatives when they talk about the ferociously hot and luminous stars known as Wolf-Rayets, which are among the largest, hottest and rarest stars in the universe ...

Star formation in the early universe was a vigorous process that created gigantic stars. Called Population III stars, these giants were massive, extremely luminous stars that lived short lives ...

Star formation in the early Universe was a vigorous process that created gigantic stars. Called Population 3 stars, these giants were massive, extremely luminous stars, that lived short lives, many of ...