Tag

Blackhole

All articles tagged with #blackhole

science23 days ago•3 min saved

Six-year cosmic jet from star-eating black hole defies expectations

A distant supermassive black hole about 665 million light-years away shredded a red-dwarf star and now unleashes a fast-moving jet that has persisted for six years and grown brighter, making it one of the most powerful such events observed. The emission arises from gas that never crossed the event horizon and is likely linked to magnetic fields around the black hole, though the exact jet mechanism remains uncertain. Scientists expect the jet to peak soon and fade gradually over the coming decade or more.

via Reuters|

#astronomy #blackhole #relativisticjet

science1 month ago•2 min saved

Milky Way's Black Hole Unveils Explosive Past Through X-ray Echoes

An international X-ray spacecraft has discovered that the Milky Way's supermassive black hole, Sagittarius A*, experienced powerful flares over the past 1,000 years, revealing a violent history previously unknown, which could reshape our understanding of black hole evolution and their influence on galaxy formation.

via Space|

#blackhole #galaxy #milkyway

science4 months ago•2 min saved

James Webb Telescope Reveals New Details of M87's Black Hole Jet and Magnetic Flip

Scientists used the James Webb Space Telescope to capture the clearest image yet of the powerful plasma jet emanating from the supermassive black hole in galaxy M87, revealing detailed features of the jet and advancing understanding of black hole physics.

via PetaPixel|

#blackhole #infrared #jet

science5 months ago•2 min saved

EHT Images Reveal Surprising Polarization Changes in M87* Black Hole

Astronomers observing the supermassive black hole M87* have discovered unexpected changes in its magnetic field polarization over several years, indicating a complex and dynamic magnetic environment near the event horizon, challenging existing models and highlighting the evolving capabilities of the Event Horizon Telescope.

via Futurism|

#blackhole #eht #eventhorizon

science5 months ago•3 min saved

Unexpected Magnetic Flips and Changes at the Black Hole's Event Horizon

Recent observations of the supermassive black hole M87* by the Event Horizon Telescope reveal unexpected reversals in magnetic fields and strange jets, challenging current models of black hole physics and indicating a highly dynamic environment near the event horizon.

via Gizmodo|

#astronomy #blackhole #eventhorizon

science6 months ago•2 min saved

Scientists Discover 'Eye of Sauron' in Space Emitting Ghost Particles

Astronomers have observed a bright galactic nucleus called PKS 1424+240, dubbed the 'Eye of Sauron,' a blazar with jets pointed directly at Earth, causing an optical illusion that makes the jets appear slower and brighter. Located 7.4 billion light-years away, it emits gamma rays and neutrinos, providing insights into supermassive black holes and cosmic jet behavior.

via Yahoo News Canada|

#astronomy #blackhole #blazar

science6 months ago•2 min saved

Astronomers Discover 'Eye of Sauron' Threatening Earth

Astronomers have observed a bright galactic nucleus called PKS 1424+240, dubbed the 'Eye of Sauron,' a blazar with jets pointing directly at Earth, creating an optical illusion that boosts its brightness and offers insights into supermassive black holes and cosmic jets.

via Futurism|

#astronomy #blackhole #blazar

science6 months ago•2 min saved

Scientists Discover 'Eye of Sauron' Gazing at Earth in Deep Space

Astronomers have observed a bright galactic nucleus called PKS 1424+240, dubbed the 'Eye of Sauron,' which is a blazar emitting intense gamma rays and neutrinos, with jets pointed directly at Earth. The apparent brightness and slow movement of its jets are due to projection effects, providing insights into supermassive black holes and cosmic jet behavior.

via yahoo.com|

#astronomy #blackhole #blazar

science6 months ago•5 min saved

Supermassive Black Hole Awakens After Decades of Dormancy

Astronomers observed a supermassive black hole in a galaxy cluster about 6 billion light-years away just beginning its active phase, launching tiny jets and coinciding with a period of intense star formation, providing rare insights into the early stages of black hole feedback and galaxy evolution.

via Phys.org|

#blackhole #cosmology #galaxy

science7 months ago•2 min saved

Israeli-led Team Observes Star Survive Black Hole Encounter and Return

An international team observed a star survive a close encounter with a supermassive black hole and return for a second pass, challenging previous assumptions about stellar tidal disruption events and suggesting many cosmic flashes may involve partial disruptions rather than complete destruction.

via Ynetnews|

#astronomy #blackhole #galaxies

science8 months ago•3 min saved

Nobel Laureate Warns on AI-Generated Black Hole Image

A new AI model trained on noisy telescope data suggests the supermassive black hole at the center of our galaxy, Sagittarius A*, is spinning at nearly top speed and its axis points toward Earth, but experts caution the results may be biased due to data quality issues.

via Yahoo|

#ai #astronomy #blackhole

science8 months ago•4 min saved

AI Reveals the Milky Way's Black Hole Spinning at Near Maximum Speed

Using AI and millions of simulations, astronomers discovered that the Milky Way's central black hole, Sagittarius A*, is spinning near its maximum speed, challenging existing theories about magnetic behaviors in accretion disks.

via SciTechDaily|

#ai #blackhole #distributedcomputing

space1 year ago•3 min saved

Black Hole Jet Strikes Mysterious Object in Deep Space

Astronomers using NASA's Chandra X-ray telescope have observed a massive jet from the supermassive black hole in the galaxy Centaurus A colliding with an unknown object, creating a unique V-shaped X-ray emission. This discovery, located 12 million light-years away, reveals new insights into the behavior of black hole jets, which are formed by high-energy particles accelerated by magnetic fields around black holes. The exact nature of the object impacted by the jet remains unknown due to its distance.

via Space.com|

#astronomy #astrophysicaljets #blackhole

science1 year ago•4 min saved

Black Hole Jet Encounters Mysterious Obstacle

Astronomers using NASA's Chandra X-ray Observatory have discovered a mysterious V-shaped X-ray emission in the galaxy Centaurus A, caused by a jet from a supermassive black hole striking an unidentified object. This object, named C4, is located about 12 million light-years from Earth. The V-shape, with arms at least 700 light-years long, suggests a collision with a massive star or gas cloud, generating turbulence and enhanced X-ray emissions. The exact nature of the object remains unknown, and the findings are detailed in The Astrophysical Journal.

via NASA|

#astronomy #blackhole #centaurusa

science-and-technology2 years ago•5 min saved

"Exploring the Mysteries of Black Hole Size, Appearance, and Time Dilation"

The center of a black hole, known as the singularity, is a theoretical point where mass is thought to be compressed to zero volume, implying infinite density, which suggests a breakdown of our current understanding of physics. The event horizon marks the boundary beyond which nothing can escape the black hole's gravitational pull. While general relativity predicts the existence of singularities, it is believed to fail at describing the true nature of a black hole's center, indicating the need for a new theory of quantum gravity. The reality inside a black hole remains speculative and may forever be beyond our empirical understanding.

via Big Think|

##blackhole #eventhorizon