Black hole merger challenges our understanding of black hole formation

Black hole merger challenges our understanding of black hole formation
Cosmic ceilidh
Hundreds of scientists are set to perform a new Scottish country dance inspired by the ripples in spacetime whose existence was first theorised by Albert Einstein.
Researchers from the University of Glasgow teamed up with the culture and research organisation Science Ceilidh to develop a dance to mark the 10th anniversary of the historic first detection of gravitational waves.
New theory proposes time has three dimensions, with space as a secondary effect
New theory proposes time has three dimensions, with space as a secondary effect
Time, not space plus time, might be the single fundamental property in which all physical phenomena occur, according to a new theory by a University of Alaska Fairbanks scientist.
It's about 'time', ha, ha. I said for a long 'time' that if it wasn't for time, we wouldn't be here. Physicality depends on it, whether you are a biological being, a star, or a speck of dust.
#time #space #Spacetime #reality
https://phys.org/news/2025-06-theory-dimensions-space-secondary-effect.html
Musings on Dark Matter and the fabric of space-time
A great deal of use of the word ‘believe’ in this article but still a fascinating rumination on the fabric of space-time and some practical consequence and opportunities for quantum computing
"Dude."
"What?"
"It's not real."
"What's not real? You sound ripped."
"Space and time, man. They're just not real!"
"Learn some physics, will you please?"
Some physics:
Singularities in Space-Time Prove Hard to Kill
https://www.quantamagazine.org/singularities-in-space-time-prove-hard-to-kill-20250527/
Warheads
‘Ground Drone vs. Air Drone: A Firework Face-Off with a Bang! # drones
Fly Marshall
https://youtube.com/shorts/ypMNUrgDR5o #Spacetime #CHILDRENOFTHEGRAVE
#music
ELECTRIC FUNERAL
Songs By BLACK SABBATH
Scientists have found evidence supporting Einstein’s prediction of “gravitational memory,” a permanent spacetime distortion caused by gravitational waves. New research suggests these wrinkles might be detectable using existing technology, revolutionizing our understanding of black hole collisions and Einstein’s general relativity.
#Physics #Einstein #BlackHoles #SpaceTime #GravitationalWaves #Science #GoodNews #Astronomy
https://www.livescience.com/space/black-holes/unproven-einstein-theory-of-gravitational-memory-may-be-real-after-all-new-study-hints
#ThoughtExperiment: Many #Worldlets?
or in other words, fractions of #World, not the whole World. #TimeTraveler #theories often involve splitting or multiplying #universes. Time Travel events divide #spacetime into two near-identical clones. Grandfather lives and does not, you did not meet yourself and then you did. But if we think this through further, its scope might not be quite so universal as it is typically presented.
Take 3 heavenly bodies: Mother #Earth, the #AlphaCentauri triple star system (at 4+ light years away), and #Polaris, the #NorthStar (at 400+ light years away).
Now we program our #TimeMachine to take us back one year (#retrograde) where we meet ourselves. Hi us guys! This all takes place in one year. There's the original us, there's us leaving the present, and there's us meeting ourselves a year earlier — standard #boilerplate #scifi #movie #script.
Alpha Centauri will have to wait another 3 years before any of this information can get to there. This is related to the concept of a #lightcone which expands at the speed of light. This doesn't sound quite so much like a newborn twin universe, does it? Now what about the North Star? It will have to wait 433 years for news of our Time Travel event. And that's still pretty much in our tiny #celestial neighborhood.
The point is that the effects of such events are largely localized and rapidly diluted as we move farther away. This still has its problems, but it doesn't quite feel like the whole universe dividing into two — maybe part of it. Possibilities are that in moving further out, the effects of a Time Travel incident may be 'blurred out', as are anomalous samples in the law of large numbers.
https://Wikipedia.org/wiki/Many-worlds_interpretation … #ManyWorlds
https://Wikipedia.org/wiki/Light_cone … #LightCone
https://Wikipedia.org/wiki/Time_travel#Absence_of_time_travelers_from_the_future … #TimeTravel
https://Wikipedia.org/wiki/Law_of_large_numbers … #LawOfLargeNumbers
I've been watching videos and reading up on cosmology, astrophysics, and particle physics.
It sure beats the news these days...
PS: For a beautifully clear (and delightfully mind-bending!) explanation of what might have existed before the Big Bang, check out PBS Space Time’s fantastic episode, "What Happened Before the Big Bang?" hosted by astrophysicist Matt O’Dowd. Highly recommended as a thoughtful companion to this thread!
Watch it here on PBS Space Time https://www.pbs.org/video/what-happened-before-the-big-bang-y76rlj/
A rare cosmic phenomenon called an #Einstein ring.
There are two galaxies, separated by a large distance. The foreground galaxy is at the center, while the background galaxy appears to be wrapped around the closer galaxy, forming a ring.
The light from the more distant object is bent about a massive intermediate object because #spacetime, the fabric of the #Universe itself, is bent by mass, and therefore light travelling through #space and #time is bent as well.
https://www.esa.int/ESA_Multimedia/Images/2025/03/Webb_spies_a_spiral_through_a_cosmic_lens
#einstein #alberteinstein #physics #space #darkmatter #darkenergy #astronomy #galaxies #stars #spacetime #discovery #technology #science #nasa #esa #gravity #relativity #theoryofrelativity #universe #cosmos #expansion #bigbang
The article doesn’t say too much, but is it surprising to find the universe may be more complicated than we currently think it is?
Dark Energy experiment challenges Einstein's theory of Universe https://www.bbc.com/news/articles/c4geldjjge0o
2/2…or #Spacetime if you prefer. Unfortunately they look different and possibly are from somewhere else. Also interestingly they seem to be becoming less and less reticent about demonstrating those performance capabilities to our latest detection technologies.At this point the evidence is hard to ignore. We probably don’t need a new accelerator. All of the challenges in this current situation encompass our inability to get over ourselves, literally.
#science #theoreticalphysics #physics #time #spacetime #quantummechanics #reality #quantumentanglement #space #einstein #theories #fabricofreality
Just a bit of light reading regarding time and reality. I think New Scientist covers a similar thing in this month’s issue…
https://thequantuminsider.com/2024/05/20/quantum-entanglement-across-space-and-time-new-experiments-probe-the-limits/
Will The Big Bang Happen AGAIN (and Again)?
#PBS #SpaceTime #PBSSpaceTime #Science #Philosophy #Epistemology #Cosmology #Astrophysics
https://www.youtube.com/watch?v=R9tJ4TkG0fU