Latest updates for Planck Stars
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Recent items include:
- An Alternative to Black Holes: Gravastars with Big Bangs Inside
- Scientists Say a New Universe Could Form Inside a Dying Star
- Scientists Discover Two Strange Dead Stars That Defy Astronomical Expectations
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An Alternative to Black Holes: Gravastars with Big Bangs Inside
Stellar mass black holes may not be black holes at all. Instead, they could be a type of extremely compact star called a gravastar, which mimics a black hole. This is according to...
Scientists Say a New Universe Could Form Inside a Dying Star
A new study suggests that the collapse of a massive star could spark the creation of a tiny expanding universe rather than a black hole. The resulting object, called a gravastar, w...
Scientists Discover Two Strange Dead Stars That Defy Astronomical Expectations
Researchers say the isolated white dwarfs Gandalf and Moon-Sized define a new class of stellar remnant because they share five traits, including X-ray emission. Across the immense...
Big Bang inside a star: How a gravastar forms
A new relativity model suggests gravastars could form when dark energy creates an expanding mini-universe inside a collapsing star, preventing a black hole.
A star's death throes involve a lot of kicking
When stars like our sun age, they puff up into red giants. Their bubbling outer mass gradually escapes into space, and their remaining cores contract into white dwarfs. Since most...
'Black hole stars'—Webb finds strongest evidence yet
The complex puzzle known as little red dots has become more complete since their initial discovery by NASA's James Webb Space Telescope in 2022. Now a particular little red dot's s...
Red dwarf stars detected 'eating' Earth-like planets
Astronomers have found some of the strongest evidence yet that stars can swallow their own planets.
Something Just Passed Between Us and a Distant Star.
In December 2019, astronomers detected a one hour brightening of a star in the Large Magellanic Cloud, a classic gravitational microlensing event. These occur when a compact object...
When Spacetime Crystallises, a Black Hole is Born
Physicists have thought for decades that microscopic black holes can theoretically emerge not from exploding stars but from delicate "critical states" in which space and time organ...
Primordial halo simulations reveal how cosmic storms shaped the universe's first stars
Just a few hundred million years after the Big Bang, the universe was a dark and simple place. There were no galaxies like the Milky Way, no planets, and no heavy elements such as...
A single origin story for the Milky Way's most mysterious stars
Lurking at the heart of the Milky Way, Sagittarius A* (Sgr A*) is a supermassive black hole four million times the mass of the sun, surrounded by a puzzling collection of young, ma...
Red dwarf stars detected 'eating' Earth-like planets
Astronomers have found some of the strongest evidence yet that stars can swallow their own planets. A new study, published in Monthly Notices of the Royal Astronomical Society, sup...
The fate of a collapsing star could depend on the turn of a ghost
Like the spin of a cosmic coin, a unique set of particle oscillations could ultimately decide the fate of the Universe’s biggest suns.Continue ReadingCategory: Physics,
Video: Thousands of planets are hidden in this image
Millions of stars. Thousands of hidden worlds. One unprecedented view of our galaxy. Three years since launch, ESA's Euclid space telescope reveals the center of the Milky Way gala...
The Strange “Spacetime Crystal” That Can Suddenly Turn Into a Black Hole
A new mathematical breakthrough sheds light on how tiny black holes could emerge from critical states of spacetime. Black holes are often portrayed as cosmic giants, swallowing sta...
Study reveals growth spurt of massive stars in extreme galactic center
Massive stars can form via accretion disks even in the Milky Way’s harsh center, showing disk-driven growth works across extreme environments.
The Dead Stars That Won't Fade Quietly
The wreckage of an exploded star is meant to fade quietly, cooling over thousands of years like the embers of a fire. So astronomers were stunned when NASA's Chandra X-ray Observat...
Physicists Devise Black Hole Alternative With a ‘Mini Universe’ at Its Center
A new paper tries to show how 'gravastars' might mimic black holes without breaking relativity.
Euclid captures 60 million stars in sharpest broad view of Milky Way's core
For just one day, our dark universe detective, Euclid, turned its gaze toward the light: the extremely bright inner region of our Milky Way galaxy, known as the galactic bulge. Thi...
Scientists Propose That Entire Universes Can Form Inside Collapsing Stars
It's like a baby Big Bang. The post Scientists Propose That Entire Universes Can Form Inside Collapsing Stars appeared first on Futurism.
Earthly Hors d'oeuvres For Hungry Red Dwarfs
We know that stars can engulf planets because stars that swell up to become red giants overwhelm any close-in planets. The Sun will do this to Venus, Mercury, and possibly Earth in...
A cataclysmic collision in space provides new clues on astronomy's biggest stalemate
Second only to black holes, neutron stars—incredibly dense star remnants—are the densest objects in the universe. When neutron stars collide, they create ripples in the fabric of s...
Brightness 'gap' in ancient star cluster reveals missing red dwarfs
Scientists from the Space Telescope Science Institute (STScI) in Baltimore, Maryland, sought to study one stellar subject and ended up finding something even more exciting. The tea...
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