#blackholeweek — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #blackholeweek, aggregated by home.social.
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Can’t have #BlackHoleWeek without the black hole in Planet Unknown! I love how it turns the player board on its head. Instead of placing tiles to cover a planet, you play them to avoid the black hole. Now, I wouldn’t want to live that close to a black hole, but it’s a fun addition to this game.
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Can’t have #BlackHoleWeek without the black hole in Planet Unknown! I love how it turns the player board on its head. Instead of placing tiles to cover a planet, you play them to avoid the black hole. Now, I wouldn’t want to live that close to a black hole, but it’s a fun addition to this game.
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Next on the #BlackHoleWeek game list is Stellar. This 2-player game has players making telescope observations and recording insights in their notebooks. One of the objects you can observe are black holes, and I love how the illustrations seem inspired by real-world black hole observations.
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Next on the #BlackHoleWeek game list is Stellar. This 2-player game has players making telescope observations and recording insights in their notebooks. One of the objects you can observe are black holes, and I love how the illustrations seem inspired by real-world black hole observations.
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For #BlackHoleWeek, I asked my spouse to play a bunch of games featuring black holes. First up? Twinkle, Twinkle, a tile-laying game of mapping the sky. Watch out, though. Black holes zap points from stars and planets. Satellites, though, don’t mind — it gives them a chance to take data!
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For #BlackHoleWeek, I asked my spouse to play a bunch of games featuring black holes. First up? Twinkle, Twinkle, a tile-laying game of mapping the sky. Watch out, though. Black holes zap points from stars and planets. Satellites, though, don’t mind — it gives them a chance to take data!
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APOD from 2021-04-11
When Black Holes Collide
A video illustrates two black holes merging, showcasing gravitational lensing effects on nearby stars. The event horizons and a combined Einstein ring are visible, with stars appearing inside and outside the ring. The merger emits strong gravitational waves, offering new cosmic insights. #BlackHoleWeek
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APOD from 2021-04-11
When Black Holes Collide
A video illustrates two black holes merging, showcasing gravitational lensing effects on nearby stars. The event horizons and a combined Einstein ring are visible, with stars appearing inside and outside the ring. The merger emits strong gravitational waves, offering new cosmic insights. #BlackHoleWeek
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@ArpBot Just in time for #BlackHoleWeek! Thanks ArpBot.
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Celebrating #BlackHoleWeek, some of our scientists are working with the Science Ceilidh #SciComm team to create a binary black hole themed dance. Science Ceilidh work to connect researchers with their local communities through the arts. The final dance will be shared with participants at the upcoming #GR24Amaldi16 conference.
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It's #BlackHoleWeek!
You might not expect it, but NSF–DOE Rubin Observatory's observations in visible light will help us learn about these dark and mysterious cosmic entities. But how?
Rubin won't observe black holes directly. Instead, it'll observe super-bright blasts of light called Active Galactic Nuclei, which are powered by hungry supermassive black holes.
AGN are some of the brightest objects in the Universe, which means we can see them extremely far away.
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It's #BlackHoleWeek!
You might not expect it, but NSF–DOE Rubin Observatory's observations in visible light will help us learn about these dark and mysterious cosmic entities. But how?
Rubin won't observe black holes directly. Instead, it'll observe super-bright blasts of light called Active Galactic Nuclei, which are powered by hungry supermassive black holes.
AGN are some of the brightest objects in the Universe, which means we can see them extremely far away.
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A simulation of two black holes merging and the ripples in spacetime they create https://youtu.be/uYncv7z9Zyc
Discover more about how we have come to understand gravitational wave signals from Kip Thorne's Nobel Prize Lecture https://youtu.be/TZLvEp_xjnY
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Apparently it's #BlackHoleWeek!
Here's a conceptual black hole and our very own Sagittarius A*.🥳
Did you know if you get to close to a black hole you'd be spaghettified?🤭
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“I am most proud of is the LIGO-Virgo Binary-Black-Hole Orrery. I felt like I was part of a cool secret because these events were not public at the time, and I was an undergraduate working on a really exciting project” – Teresita Ramirez #HumansOfLIGO #BlackHoleWeek
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Could you accidentally turn a game box into a black hole? I looked into that a couple years ago for #BlackHoleWeek!
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It is Black Hole Week!
Let's take a trip around one. In this visualization from NASA, the camera approaches a black hole, skims the event horizon and slingshots back out.
A flat, swirling cloud of hot, glowing gas called an accretion disk surrounds the black hole. Glowing photon rings form closer to the black hole from light that has orbited it one or more times.
https://www.youtube.com/watch?v=XgF46YYPplI
More info at https://science.nasa.gov/universe/black-holes/supermassive-black-holes/new-nasa-black-hole-visualization-takes-viewers-beyond-the-brink/
#BlackHoleWeek
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It is Black Hole Week!
Let's take a trip around one. In this visualization from NASA, the camera approaches a black hole, skims the event horizon and slingshots back out.
A flat, swirling cloud of hot, glowing gas called an accretion disk surrounds the black hole. Glowing photon rings form closer to the black hole from light that has orbited it one or more times.
https://www.youtube.com/watch?v=XgF46YYPplI
More info at https://science.nasa.gov/universe/black-holes/supermassive-black-holes/new-nasa-black-hole-visualization-takes-viewers-beyond-the-brink/
#BlackHoleWeek
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The story of our first discovery of two merging black holes
A documentary by Kai Staats
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Gravitational waves and black holes mergers have been inspiring Christopher Taudt (@harte_echtzeit
sonomu.club) to create music!Read all about it in the #LIGOMagazine
https://ligo.org/wp-content/uploads/2025/03/LIGO-magazine-issue26.pdf#page=20Check out the music at https://callitanythingrecords.bandcamp.com/album/ji-k-kan
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We had to pull out Planet Unknown with the black hole board for #BlackHoleWeek. HAD to!
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It's #BlackHoleWeek! Share with us in the comments your most creative black hole art designs!
🖼️: An artistic take on a neutron star–black hole merger by Carl Knox, OzGrav-Swinburne University
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It's Black Hole Week.
Let's marvel at the images and size of these black holes taken by the Event Horizon Telescope over the past few years - Sgr A* the black hole at the center of our galaxy and the super massive black hole (SMBH) in galaxy M87. The images of SMBH TON 618 and the SMBH in the Andromeda galaxy are copies of the image of SMBH M87 but with scale info added by me.
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It's Black Hole Week.
Let's marvel at the images and size of these black holes taken by the Event Horizon Telescope over the past few years - Sgr A* the black hole at the center of our galaxy and the super massive black hole (SMBH) in galaxy M87. The images of SMBH TON 618 and the SMBH in the Andromeda galaxy are copies of the image of SMBH M87 but with scale info added by me.
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GW230529 was a particularly interesting observation of a neutron star merging with an unusually small black hole. Mike Zevin, Vincent Juste, Shania Nichols, Shanika Galaudage discuss behind the scenes work on the discovery in #LIGOMagazine https://ligo.org/wp-content/uploads/2024/10/LIGO-magazine-issue25.pdf#page=6
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It is Black Hole Week!
Check out this wonderful biographical memoir of John Wheeler by his student Kip Thorne.
Physicist Wheeler, famed for his analogies and aphorisms, is also known for popularizing the term "black hole" and for inventing the terms "quantum foam", "neutron moderator", "wormhole" and "it from bit."
https://www.nasonline.org/wp-content/uploads/2024/06/wheeler_john.pdf
#BlackHoleWeek
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It is Black Hole Week!
Check out this wonderful biographical memoir of John Wheeler by his student Kip Thorne.
Physicist Wheeler, famed for his analogies and aphorisms, is also known for popularizing the term "black hole" and for inventing the terms "quantum foam", "neutron moderator", "wormhole" and "it from bit."
https://www.nasonline.org/wp-content/uploads/2024/06/wheeler_john.pdf
#BlackHoleWeek
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Fun vid & quick reads for #BlackHoleWeek:
• https://youtu.be/e-P5IFTqB98
• https://en.m.wikipedia.org/wiki/Black_hole
• https://exoplanets.nasa.gov/news/1564/what-is-a-black-hole/
• #BlackHole types: https://science.nasa.gov/universe/black-holes/types/
• https://www.cfa.harvard.edu/research/topic/black-holes -
Fun vid & quick reads for #BlackHoleWeek:
• https://youtu.be/e-P5IFTqB98
• https://en.m.wikipedia.org/wiki/Black_hole
• https://exoplanets.nasa.gov/news/1564/what-is-a-black-hole/
• #BlackHole types: https://science.nasa.gov/universe/black-holes/types/
• https://www.cfa.harvard.edu/research/topic/black-holes -
Black holes, black holes… nature’s cosmic vacuum cleaners, sucking in stars, secrets, and probably your missing socks. They bend space, time, and your will to resist googling “spaghettification.” What’s "inside"? No one knows. Maybe a party. BYO gravity. We celebrate the unknown this #BlackHoleWeek!
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Black holes, black holes… nature’s cosmic vacuum cleaners, sucking in stars, secrets, and probably your missing socks. They bend space, time, and your will to resist googling “spaghettification.” What’s "inside"? No one knows. Maybe a party. BYO gravity. We celebrate the unknown this #BlackHoleWeek!
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A couple years ago for #BlackHoleWeek, I looked at the black hole cards in Stellar and found some results they reminded me of.
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“[My] favourite event is the [neutron star–black hole] NSBH merger GW200105; I picture NSBHs events as the 'experienced' black hole showing the 'baby' neutron star what to do, and always find it funny.” – Leigh Smith #HumansOfLIGO
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“I love to take my 7-year-old brother Tommy to the Adler planetarium and talk to him about space. He thinks that black holes are really cool, and whenever I feel stressed about research, I like to remind myself of this perspective by looking at one of his gravitational-wave inspired drawings that I keep at my desk” – Maya Fishbach #HumansOfLIGO
https://humansofligo.blogspot.com/2019/08/maya-fishbach.html
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To kick off #BlackHoleWeek, here's a little video I did last year counting down my three fave black holes! youtu.be/BWDc8b_dkrM?...
Top 3 Favorite Black Holes -
"Black holes are certainly the most mysterious objects in the Universe"
Just what happens when you fall into a black hole? Bartoz Fornal is our guide to crossing the event horizon with illustrations by Nutsinee Kijbunchoo in the latest #LIGOMagazinehttps://ligo.org/wp-content/uploads/2025/03/LIGO-magazine-issue26.pdf#page=22
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🚨 Neues Headerbild 🖼️
Forschende der unabhängigen @maxplanckgesellschaft Forschungsgruppe „Beobachtung und Simulation von kollidierenden Binärsystemen“ haben untersucht, wie die Spins verschmelzender Schwarzer Löcher den „Kick“ / Rückstoß nach ihrer Verschmelzung beeinflussen und wie dies wiederum die Spins der Verschmelzungsüberreste nach wiederholten Verschmelzungen in dichten Sternumgebungen beeinflusst.
Das Titelbild zeigt einige ihrer Ergebnisse.
ℹ️ https://www.aei.mpg.de/1244628/towards-a-deeper-understanding-of-black-hole-origins?c=785618
📄 https://arxiv.org/abs/2503.21278 (Das Headerbild ist Abb. 5 in dieser Veröffentlichung)
#HeaderBild #SchwarzeLöcher #KicksSchwarzerLöcher #BlackHoleWeek #Astrodon #Astronomie
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🚨 New header picture 🖼️
Researchers from the independent @maxplanckgesellschaft research group “Binary Merger Observations and Numerical Relativity” have studied how the spins of merging black holes influence the recoil after their merger, and how this in turn influences the remnant spin magnitudes after repeated mergers in dense stellar environments.
The header picture shows some of their results.
ℹ️ https://www.aei.mpg.de/1244528/towards-a-deeper-understanding-of-black-hole-origins?c=785562
📄 https://arxiv.org/abs/2503.21278 (The header picture is Fig. 5 in there)
#HeaderPicture #BlackHoles #BlackHoleKicks #BlackHoleWeek #Astrodon #Astronomy
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In case you missed it during the most recent #blackHoleWeek, NASA put out a very nice visualization of flying around and of falling into a black hole, based on computations by @SchnittGetsReal. It can even be viewed as a 360 video if you have a #VR headset. They also have explainer versions for both on the same channel.
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In case you missed it during the most recent #blackHoleWeek, NASA put out a very nice visualization of flying around and of falling into a black hole, based on computations by @SchnittGetsReal. It can even be viewed as a 360 video if you have a #VR headset. They also have explainer versions for both on the same channel.
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Had no idea there is a #BlackHoleWeek. And it just ended, which explains why there were so many Black Hole related posts this week. Including an interesting discovery that our Galactic Center is venting. Totally on point for astronomers to call it a Chimney Exhaust Vent 😂.
We need more such events. I propose a Liquid Methane Moons week when Dragonfly launches.
Black Hole Week: https://science.nasa.gov/universe/black-hole-week
Chimney Exhaust Vent: https://phys.org/news/2024-05-nasa-chandra-galactic-center-venting.html
Dragonfly: https://science.nasa.gov/mission/dragonfly -
Another #BlackHoleWeek #GravitationalWave candidate #S240512r
If real, the source is probably a binary black hole. Updated analysis is already complete
False alarm rate 1 in 100 yr
GraceDB https://gracedb.ligo.org/superevents/S240512r/
GCN https://gcn.nasa.gov/circulars/36437 https://gcn.nasa.gov/circulars/36444
Rating 🍧🍥⚫️ -
Waking up this weekend to #GravitationalWave candidate #S240511
If real, the source is probably a binary black hole
False alarm rate 1 in 100 yr
GraceDB https://gracedb.ligo.org/superevents/S240511i/
GCN https://gcn.nasa.gov/circulars/36425
Rating 🍦🌅🧸 -
What's the smallest black hole we've detected? We're not sure!
The maximum neutron star mass is currently uncertain. We hope to measure it with future observations. We know it must be between 2 and 3 solar masses
The less massive objects of GW190814 (about 2.6 solar masses) and GW200210_092254 (about 2.8 solar masses) could be either massive neutron stars or small black holes
#BlackHoleWeek 4/🧵
🖼️: Caltech/MIT/R Hurt
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Could these black holes go on to merge again to form even bigger black holes? Maybe! This could happen if they are in a globular cluster or a nuclear star cluster where there are many black holes in a small region
It is possible that some of the binaries we have detected already were formed this way. As we observe more ,we'll be able to uncover the details of how our black holes form
#BlackHoleWeek 3/🧵
🎬: Hubble Space Telescope
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When two black holes merge, they form a bigger black hole. This bigger black hole will have around 95% of the mass of its two parent black holes. The remaining 5% is carried away as the energy in the gravitational waves
We measure black hole masses in solar masses (our Sun is 1 solar mass)
The biggest black holes we have seen are the merger remnants for
⚫️GW200220_061928 around 140 solar masses
⚫️GW190521 around 150 solar masses
⚫️GW190426_190642 around 170 solar masses#BlackHoleWeek 2/🧵
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We have observed a diverse family of black holes using #GravitationalWaves
We now now they come in a range of sizes, but what are the biggest and smallest black holes we have discovered?
#BlackHoleWeek 1/🧵
📊: @NUCIERA
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APOD from 2024-05-08
Visualization: A Black Hole Accretion Disk
Circling a black hole with an accretion disk creates unusual light deflections, visualized in an animated video. The observer sees a bright, distorted disk and experiences image inversions while moving around the black hole, relevant to today's advanced imaging by the Event Horizon #Telescope. #BlackHoleWeek
Video at https://apod.nasa.gov/apod/ap240508.html#space #astronomy
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Audio Etymologies of the Day
“Black” comes from Proto-Indo-European *bʰleg-, something like this (listen):
🔈http://www.ancientsounds.net/eastern-origins/black-from-PIE-bhleg.wav*bʰleg- may be related to *bʰléiǵ- “shiny”, the root of “bleach”:
🔈http://www.ancientsounds.net/eastern-origins/bleach-from-PIE-bhleig.wav*bʰléiǵ- also developed into Sanskrit भ्रज bhraj- “burning”:
🔈http://www.ancientsounds.net/eastern-origins/PIE-bhleig-to-Sanskrit-bhraajati.wavMany black things in nature are also shiny, e.g. dark lakes, crows' feathers, stone etc.
#BlackHoleWeek #linguistics #etymology #EnglishLanguage #phonetics #ProtoIndoEuropean #Sanskrit
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Tuesday #GravitationalWave candidate #S240507p
If real, the source is probably a binary black hole
False alarm rate 1 in 50 yr
GraceDB https://gracedb.ligo.org/superevents/S240507p
GCN https://gcn.nasa.gov/circulars/36404
Rating ⚫️🐤🐞 -
When two black holes merge they emit a huge amount of energy as gravitational waves. The peak luminosity in gravitational waves is greater than the luminosity in visible light of all the stars we can see in the Universe
🎬: SXS Collaboration
