Astronomers puzzled by cosmic black hole Posted: 1 year ago by 2manyusernames
Astronomers have found an enormous hole in the Universe, nearly a billion light-years across, empty of both normal matter such as stars, galaxies, and gas, and the mysterious, unseen "dark matter." While earlier studies have shown holes, or voids, in the large-scale structure of the Universe, this new discovery dwarfs them all.
Comments: 3 Score: [-] 253 [+].
Astronomers Find Enormous Hole in the Universe Posted: 1 year ago by AutumnLotus
Astronomers have found an enormous hole in the Universe, nearly a billion light-years across, empty of both normal matter such as stars, galaxies, and gas, and the mysterious, unseen "dark matter." While earlier studies have shown holes, or voids, in the large-scale structure of the Universe, this new discovery dwarfs them all.
Comments: 3 Score: [-] 5 [+].
Astronomers Detect Matter Torn Apart By Black Hole Posted: 2 months ago by AutumnLotus
Astronomers have used two different telescopes simultaneously to study the violent flares from the supermassive black hole in the centre of the Milky Way. They have detected outbursts from this region, known as Sagittarius A*, which reveal material being stretched out as it orbits in the intense gravity close to the central black hole.
Comments: 0 Score: [-] 188 [+].
Is dark matter composed of sterile neutrinos? Posted: 2 years ago by braveheart
About 70 percent is dark energy, and around 22 percent of the universe is made up of dark matter. Dark matter makes up a substantial part of the universe. Knowing what it is would answer a crucial question about the universe as a whole.
Comments: 0 Score: [-] 70 [+].
Scream of Black Hole's Birth Detected Halfway Across the Universe Posted: 4 months ago by AutumnLotus
The incredible amount of energy given off across the entire electromagnetic spectrum during a gamma-ray burst is what Jonathan Grindlay of the Harvard-Smithsonian Center for Astrophysics calls "the birth pangs of a black hole. This is the scream."
Comments: 3 Score: [-] 523 [+].
Black Holes Burp Big Bubbles Posted: 2 months ago by AutumnLotus
Like cosmic bubble makers, some black holes spew out behemoth blobs of hot gas into their home galaxies.
The bubbles ultimately pop, and their gassy contents keep both the black hole and its galaxy from ballooning to mega sizes, a new study finds.
Comments: 1 Score: [-] 199 [+].
The violent lives of galaxies: Caught in the cosmic matter web Posted: 12 months ago by AutumnLotus
Astronomers are using the NASA/ESA Hubble Space Telescope to dissect one of the largest structures in the Universe as part of a quest to understand the violent lives of galaxies. Hubble is providing indirect evidence of unseen dark matter tugging on galaxies in the crowded, rough-and-tumble environment of a massive supercluster of hundreds of galaxies.
Comments: 0 Score: [-] 215 [+].
Black Holes May Fill the Universe with Seeds of Life Posted: 2 years ago by dork
New research shows that black holes are not the ultimate destroyers that are often portrayed in popular culture. Instead, warm gas escaping from the clutches of enormous black holes could be one source of the chemical elements that make life possible.
Comments: 1 Score: [-] 87 [+].
Colossal Black Hole Shatters the Scales Posted: 1 year ago by AutumnLotus
The most massive black hole in the universe tips the cosmic scales at 18 billion times more massive than the sun, astronomers suggest today at a meeting of the American Astronomical Society. Even though researchers suggested black holes up to this mass might exist in quasars, this is the first direct confirmation of such a behemoth.
Comments: 1 Score: [-] 206 [+].
Astronomers Devise New Way to Weigh Black Holes Posted: 2 years ago by AutumnLotus
Astronomers can't see black holes. And they definitely can't go out and grab a piece of one to measure its mass.
So how do they weigh them?
Comments: 0 Score: [-] 76 [+].
US astronomers spot massive, record-setting stellar-mass black hole Posted: 1 year ago by AutumnLotus
US astronomers have discovered the biggest black hole orbiting a star 1.8 million light-years from Earth in the constellation Cassiopeia, with a record-setting mass of 24 to 33 times that of our Sun. The massive newcomer beats the previous stellar-mass black hole discovered October 17 in the M33 galaxy that has 16 times the mass of our Sun.
Comments: 0 Score: [-] 161 [+].
The Black Hole Posted: 2 months ago by wildminou
A sleep-deprived office worker accidentally discovers a black hole and then greed gets the better of him...
Nice short movie
Comments: 2 Score: [-] 120 [+].
Galaxies Spawned Of Black Holes Posted: 17 hours ago by pocksucket
Super Massive Black Holes at the heart of galaxies may have been their progenitors and not the other way round as had been thought according to new research.
Comments: 2 Score: [-] 151 [+].
Black hole confirmed in Milky Way Posted: 1 month ago by AutumnLotus
There is a giant black hole at the centre of our galaxy, a study has confirmed.
The black hole is four million times heavier than our Sun, according to the paper in The Astrophysical Journal.
Comments: 1 Score: [-] 94 [+].
Supermassive black holes about to get much brighter! Posted: 2 years ago by 2manyusernames
Spitzer Space Telescopes show that the vicinities around the black holes could be backing up with excess matter - the black holes just can’t consume it fast enough to clear the space. When this happens, the matter heats up, and releases a tremendous amount of energy.
Comments: 0 Score: [-] 1 [+].
Cosmic 'Bullets' Traced to Galactic Black Holes Posted: 1 year ago by AutumnLotus
The most energetic particles in the universe likely come from enormous black holes nestled in the restless hearts of traumatized galaxies, scientists say. Where these cosmic "bullets" originated has been a source of much speculation, with scientists proposing everything from gamma ray bursts to decaying dark matter.
Comments: 1 Score: [-] 291 [+].
Scientists say dark matter doesn't exist Posted: 1 year ago by AutumnLotus
Two Canadian astronomers think there is a good reason dark matter, a mysterious substance thought to make up the bulk of matter in the universe, has never been directly detected: It doesn't exist.
Comments: 5 Score: [-] 226 [+].
Nothing Escapes The Pull Of A PLAYSTATION 3, Not Even A Black Hole Posted: 3 weeks ago by punthe
What do you get when you take not one, not four, not eight, but sixteen PS3s and chain them together like some crazy video game test center configuration for extremely lucky children? Simple: The relatively affordable power to answer the question "At what speed to vibrating black holes stop vibrating?"
Comments: 0 Score: [-] 39 [+].
Milky Way's black hole probed closer than ever before Posted: 12 months ago by AutumnLotus
We are close to seeing the true blackness of a black hole. Astronomers have detected radio emission coming from within 30 million kilometres of the dark object, thought to be a colossal black hole, that lies at the centre of the galaxy. Includes video.
Comments: 0 Score: [-] 231 [+].
Hundreds of 'Missing' Black Holes Found Posted: 1 year ago by AutumnLotus
Hundreds of "missing" black holes have been found lurking in dusty galaxies billions of light-years away. The finding is the first direct evidence that most, if not all, massive galaxies in the distant universe spent their youths constructing supermassive black holes at their cores.
Comments: 6 Score: [-] 214 [+].
Giant ropes of dark matter found in new sky survey Posted: 11 months ago by AutumnLotus
Huge filaments of dark matter have been detected in a survey of thousands of distant galaxies. The discovery supports the idea that dark matter drove the formation of galaxies and larger cosmic structures and resolves a discrepancy in previous studies about how much dark matter the universe contains.
Comments: 0 Score: [-] 250 [+].