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Red and white dwarf stars may be hungrier than we thought
Learn more about a new advanced model that is helping researchers see the true colors of some white dwarf stars.
Brown dwarfs are the black (or brown?) sheep of astronomy. They’re too big to be considered a traditional gas planet, but they are too small to have started nuclear fusion and made...
There are myriad ways of "being a star," and scientists spend years trying to uncover and understand them. One unusual type is the so-called hot subdwarf—small stars that burn my...
How small can brown dwarfs be before the definition breaks down? That question is at the heart of new research, and new JWST images. Using the space telescope, researchers have dis...
Astronomers detected an unusual triangular light curve about 300 light years away. They were searching for Black Widow Binaries, where a dense neutron star eats its companion. But...
A star’s color usually reflects its temperature, but white dwarfs can break that pattern, with models revealing unexpected shades of green, pink, and purple. A star that has drawn...
Future gravitational wave observatories will be able to see the gravitational waves of close-orbiting binary stars. A newly studied white dwarf system could be one of the first sys...
Astronomers using data from the Euclid space telescope have discovered an exceptionally faint stellar system near the Fornax dwarf galaxy. Called Fornax-7, it appears to contain on...
Dwarf galaxies—with a mass equal to about a billion suns, but often considerably less—are the most abundant in the universe. However, because of their low luminosity, they are very...
30 years ago, an amateur astronomer noticed a white dwarf star suddenly getting brighter. New research shows this is due to a Very Late Thermal Pulse, a type of helium flash. The s...
When a dying star runs out of fuel and sheds its outer layers, its remaining core can become an approximately Earth-sized, extremely dense stellar remnant called a white dwarf. For...
A pair of white dwarfs race around each other every 374 seconds, creating a rhythmic X-ray beacon that could reveal powerful gravitational waves. Every 6.2 minutes, two dead stars...
This starry view of the nearby star-forming region IC 348 is one of the largest images released to date from NASA's James Webb Space Telescope. Using Webb, astronomers searched IC...
University of Warwick astronomers have shown that white dwarf stars can glow in a range of colors, including the first star ever found that would appear green to the human eye.
Current gravitational-wave observatories aren't sensitive enough to capture the gravitational waves of binary stars. They can only see the gravitational chirps of black holes just...
Pulsar Timing Arrays have been used to observe the background of gravitational waves in our galaxy. We aren't certain of their origin, but a new study shows a strong source could b...
Faint stars hidden inside massive early galaxies suggest some may contain several times more stellar mass than previously estimated. Some of the universe’s earliest massive galaxie...
White dwarf stars, it turns out, come in a variety of hues. Says one astronomer: “Some of them genuinely surprised me.”
Astronomers using Georgia State University's Center for High Angular Resolution Astronomy (CHARA) Array have found that nearby stars darken toward their edges more strongly at near...
Neutron stars, the extremely dense remains of massive stars that exploded at the end of their lives, are widely studied astrophysical objects. Some of these stars, known as pulsars...
The discovery reveals a new way that stars and planetary companions can interact.
By Jack Guy (CNN) — Astronomers analyzing white dwarf stars have for the first time found a star that would appear green to human eyes, according to a new study. While for most sta...
In 1974, Stephen Hawking made a prediction that transformed our understanding of black holes. Black holes, he showed, are not truly black: They slowly lose energy through a quantum...
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