This evening I learned the following bizarre things:
0/ Colliding massive objects create gravity waves (this I already knew).
1/ When spinning black holes collide, they experience an acceleration at right angles to the sum of the spins.
2/ The bigger the black holes, the greater the acceleration and resulting speed.
3/ When this happens with galactic core supermassive black holes, this can exceed the escape velocity of the galaxies.
4/ When one of these high-speed supermassive black holes encounters a dust or gas cloud, it creates a contrail of stars! And we can see these star-contrails - straight lines of stars, scattered across the cosmos!

Thank-you Professor David Blair!

https://science.nasa.gov/missions/hubble/hubble-sees-possible-runaway-black-hole-creating-a-trail-of-stars/

#Astronomy #Astrophysics #Astrodon #BlackHoles #GravityWaves #SuperMassiveBlackHoles

Hubble Sees Possible Runaway Black Hole Creating a Trail of Stars

There's an invisible monster on the loose, barreling through intergalactic space so fast that if it were in our solar system, it could travel from Earth to

NASA Science

When neutron stars merge, things get messy

What happens when the densest objects in the universe collide? A neutron star merger is a cosmic forge that creates heavy elements like gold and platinum, but it also unleashes "messy" gravitational waves and gamma-ray bursts that can sterilize nearby solar systems. We look at the violent physics of a kilonova.

#science #Kilonova #Astrophysics #Cosmos #Space #Discovery #GravityWaves #NASA

https://www.thefuturist.co/when-neutron-stars-merge-things-get-messy/

When neutron stars merge, things get messy

When neutron stars merge, things get messyA NASA simulation shows the magnetic fields of colliding neutron stars meeting and entwining.[...]

The Futurist
Astropilot - A Memory, Dissolving [Full EP] – space harmony and sounds of forest and rain

  At the channel The Psychedelic muse there are lots of different atmosphere music. It is almost like tv or radio. There are lots of differe...

Entangled Whispers: Sensing Gravity's Quantum Dance

Unlocking the Secrets of the Universe, One Quantum Step at a Time.

Unlock the secrets of spacetime! 🚀 Discover gravity wave travel & cosmic communication 🌌✨

#gravitywaves #blackholes

https://xucaen.geekytechguy.net/travel-by-gravity/

Unlocking the Cosmos: Communicating and Traveling with Gravitational Waves – Xucaen In Space Brain

Primordial black holes and dark matter, oh my! Hard SF writers will want to read this article.

https://phys.org/news/2025-01-gravitational-black-holes-quantum-effect.html

@orionkidder : if recollection serves me, this article will be of interest re one of your SF universes.

#BoostingIsSharing

#Writer #Author #ScienceFiction #SF #scifi #WritingCommunity #WritersOfMastodon #BlackHole #pbh #ligo #Science #Physics #Astrophysics #QuantumPhysics #QuantumMechanics #Space #BlackHoles #gravitywaves

Gravitational waves may prove black holes' quantum effect and resolve the dark matter problem

Black hole quantum effects are usually thought to be too small to have any observable signatures. This is indeed the case for heavy black holes, such as the ones detected via gravitational waves by LIGO in 2015. These black holes have mass of a few tens of solar mass and, consequently, their Hawking radiation is negligible.

Phys.org

Revealing Gravity Waves

Severe weather — like thunderstorms, tornadoes, and hurricanes — can push air upward into a higher layer of the atmosphere and trigger gravity waves. Aboard the International Space Station (ISS), the Atmospheric Waves Experiment (AWE) instrument captures these waves by looking for variations in the brightness of Earth’s airglow (above). Recently, when Hurricane Helene hit the southeastern United States, AWE caught a series of gravity waves some 55 miles up, pushed by the storm (below). It’s incredible to see these long-ranging ripples spreading far beyond the heart of the storm. (Video credits: NASA Goddard and Utah State University)

https://www.youtube.com/watch?v=BYbgtqs7djQ

#atmosphericScience #fluidDynamics #gravityWaves #hurricanes #physics #science

Hurricane Helene’s Gravity Waves Revealed by NASA’s AWE

YouTube
Hurricane Helene’s Gravity Waves Revealed By NASA’s AWE
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https://science.nasa.gov/earth/hurricane-helenes-gravity-waves-revealed-by-nasas-awe/ <-- shared technical article
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“On Sept. 26, 2024, Hurricane Helene slammed into the Gulf Coast of Florida, inducing storm surges and widespread impacts on communities in its path. At the same time, NASA’s Atmospheric Waves Experiment, or AWE, recorded enormous swells in the atmosphere that the hurricane produced roughly 55 miles above the ground. Such information helps us better understand how terrestrial weather can affect space weather, part of the research NASA does to understand how our space environment can disrupt satellites, communication signals, and other technology…”
#GIS #spatial #mapping #AWE #HurricaneHelene #spaceweather #gravitywaves #spacestation #ISIS #AtmosphericWavesExperiment #atmosphere #swell #hurricane #weather #extremeweather #climatechange #infrastructure #satellites #remotesensing #model #modeling #telecommunications #risk #hazard
@nasa
Hurricane Helene’s Gravity Waves Revealed by NASA’s AWE - NASA Science

On Sept. 26, 2024, Hurricane Helene slammed into the Gulf Coast of Florida, inducing storm surges and widespread impacts on communities in its path. At the same time, NASA’s Atmospheric Waves Experiment, or AWE, recorded enormous swells in the atmosphere that the hurricane produced roughly 55 miles above the ground. Such information helps us better […]

If Gravitons Exist, this Experiment Might Find Them

There are four fundamental forces in the Universe; strong, weak, electromagnetic and gravity. Quantum theory explains three of the four through the interaction of particles but science has yet to discover a corresponding particle for gravity. Known as the ‘graviton’, the hypothetical gravity particle is thought to constitute gravitational waves but it hasn’t been detected … Continue reading "If Gravitons Exist, this Experiment Might Find Them"

Universe Today
Gravitational Wave Research Reveals Missing Details on The Mysterious Antikythera Mechanism

Little more than a handful of corroded bronze wheels and heavily encrusted gears now remains of the ancient artifact called the Antikythera mechanism, leaving archaeologists to speculate over its functionality and purpose.

ScienceAlert