#astrophysics — Public Fediverse posts

Astronomy Basics - The Wonders of the Universe
Designed to help one gain an understanding of our planet, solar system, galaxy and more. Absorbing the Big Picture of life, the universe and everything.
https://youtube.com/playlist?list=PLM1kyOAO_kDa-Z4z5wlQxWMkn6JDqVhXA&si=YlaWC4SwusVbtqJJ&utm_source=dlvr.it&utm_medium=mastodon
#Astronomy #Science #Space #Galaxy #Stars #Astrophysics #Learning #Cosmos #Universe

Synchronized white dwarf-red dwarf pairs are powering cosmic radio lasers — and we now know how

https://www.universetoday.com/articles/synchronized-stars-power-cosmic-radio-laser

#science #stars #astrophysics

🕳️ oddquark // Black Hole Watch — 2026-08-23

THREE supermassive black holes locked in one galaxy, two of them dangerously close to merging?! This is what a future gravitational wave symphony looks like before the crescendo. Absolutely unreal 🕳️🌀

🔗 https://earthsky.org/space/3-supermassive-black-holes-discovered-in-1-galaxy/

#BlackHole #Astrophysics #GravitationalWaves #EventHorizon

If I know any astrophysicists: I was reading a brief news blurb about the Max Planck Institute's interpretation of data from the Arctic IceCube Neutrino Observatory, that led them to conclude they were observing a blazar with gravitational lensing due to dark matter.

And a random question occurred to me. What's the interaction between dark matter and black holes? I don't recall reading anything about this over the years. I'm wondering if it forms a normal accretion disk, and if we can see the radiation from that, or if not, what does actually happen. Can black holes "eat" dark matter or no?

#curiosity #astrophysics #BlackHole #blazar #DarkMatter #GravitationalLensing #neutrino

Infographic: NASA’s Pandora Mission ✨

#Astrophysics #ExoplanetAtmospheres #Infographic #Infrared #Pandora #Star #Universe #VisibleLightImaging

▶️ 1 new picture from NASA (SVS) https://commons.wikimedia.org/wiki/File:Infographic-_NASA%E2%80%99s_Pandora_Mission_%28SVS14974%29.jpg

Quick Passage

Mimas briefly slipped in front of Tethys while the Cassini spacecraft looked on and captured the event in this series of images

More: https://images.nasa.gov/details/PIA08135
Credit: NASA/JPL/Space Science Institute

#mimas #cassini #cassinihuygens #astrodon #astronomy #astrophotography #astrophysics

🕳️ oddquark // Black Hole Watch — 2026-08-22

S301 whipping around Sgr A* at 25,000 km/s, just 11.5 AU out?! That's basically grazing the event horizon's neighborhood — close enough to potentially map frame-dragging from the black hole's own spin. Spacetime is not a metaphor here 🌀

🔗 https://www.wired.com/story/the-galaxys-fastest-star-could-reveal-the-secrets-of-a-supermassive-black-hole/

#BlackHole #Astrophysics #GravitationalWaves #EventHorizon

💫 JWST Finds a “Star” 100 Billion Times Brighter Than Any Star Should Be https://scitechdaily.com/jwst-finds-a-star-100-billion-times-brighter-than-any-star-should-be/

#science #astrophysics

srry i had to

#cosmology #astrophysics #meme

Check out my #collection of #astro-oriented people and organizations. Follow some of them today to learn a little more about #astronomy and #astrophysics, but also to help see scientists as people with lives and concerns.

https://mastodon.cooleysekula.net/collections/116847352039485746

🚀📡 Oh boy, a team of #astrophysics wizards finally figured out that the Hubble Telescope's radiation woes have been dancing to its own beat, completely ignoring the Solar cycle. 🤦‍♂️🤓 Why don't we just let the Sun and Hubble form a jazz duo, since they're so great at improvisation? 🎷🌞
https://arxiv.org/abs/2608.18214 #HubbleTelescope #SolarCycle #spacejazz #sciencehumor #HackerNews #ngated

A initially uniform magnetic field background (not very realistic!) is shaped across 13 billion years by the progressive formation of cosmic structures (filaments and halos) in an ideal-MHD simulation with ENZO. #SimulatedUniverses #astrophysics #physics

Mixing Paints

Nature is an artist, and this time she seems to have let her paints swirl together a bit. What the viewer might perceive to be Saturn's surface is really just the tops of its uppermost cloud layers. Everything we see is the result of fluid dynamics. Astronomers study Saturn's cloud dynamics in part to test a...

More: https://images.nasa.gov/details/PIA18290
Credit: NASA/JPL-Caltech/Space Science Institute

#saturn #cassini #cassinihuygens #astrodon #astronomy #astrophotography #astrophysics

Have we FINALLY found a rocky exoplanet with an atmosphere?! | Night Sky News August 2026. Via @drbecky_s #Space #Astrophysics #OrbitalMechanics #Astronomy 🚀 🌌 ☄️ 🛰️ youtu.be/G6su3-ljCfM?...

Have we FINALLY found a rocky ...

🕳️ oddquark // Black Hole Watch — 2026-08-21

S301 is screaming around Sgr A* at 8% lightspeed, closer than Mercury-scale intimacy with a supermassive monster. Frame dragging from the hole's SPIN might finally be measurable. Einstein, brace yourself 🌀🕳️

🔗 https://arstechnica.com/science/2026/08/scientists-find-closest-star-to-the-milky-ways-central-black-hole/

#BlackHole #Astrophysics #GravitationalWaves #EventHorizon

💁🏻‍♀️ TIL: 🌌⚡ Astronomers in #Chile confirmed the fastest #star ever measured in the #MilkyWay, S301, which swings around Sagittarius A*, the #blackhole at our #galaxy’s center.

At closest approach it travels over 24,000 km per second, roughly 8% of #lightspeed. The result tests how #gravity warps #space and #time and could help measure the black hole’s spin.

👉 https://www.npr.org/2026/08/19/nx-s1-5936479/fastest-star-galaxy-black-hole-sagittarius-a-milky-way

#astronomy #space #science #einstein #telescope #orbit #astrophysics #speed #sagittariusa #relativity #nasa #research

2026 August 21

Time-Lapse of the S301 Star Orbiting Sagittarius A*
* Image Credit & Copyright: ESO/GRAVITY Collaboration/L. Calçada
https://www.eso.org/public/
https://www.eso.org/sci/facilities/paranal/instruments/gravity/overview.html
https://luiscalcada.com/
* Text: Cecilia Chirenti (NASA GSFC, UMCP, CRESST II)
https://science.gsfc.nasa.gov/sci/bio/cecilia.chirenti

Explanation:
What does it feel like to zoom around a spinning supermassive black hole? The featured video shows a time-lapse of 4 years of observations of the S301 star orbiting Sagittarius A*, the 4-million-solar-mass black hole in the center of our galaxy. S301 was discovered in 2023 with the Very Large Telescope Interferometer of the European Southern Observatory, located in the Atacama Desert in Chile. Astronomers recently found that S301 takes approximately 8.7 years to go around and reaches speeds of 25,000 km/s. It comes closer to the black hole than any other stars detected before, similar to the distance from Saturn to the Sun. Because it comes so close to Sagittarius A*, S301 could be used to directly measure how fast the black hole spins and test Einstein's theory of general relativity. According to the theory, a spinning black hole drags the fabric of spacetime around itself, affecting the orbits of close-by objects.
https://science.nasa.gov/universe/black-holes/types/#supermassive
https://www.eso.org/public/videos/eso2612b/
https://apod.nasa.gov/apod/ap220513.html
https://www.nature.com/articles/s41586-026-10894-w
https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlti/
https://www.eso.org/public/
https://www.esa.int/Applications/Observing_the_Earth/The_Atacama_Desert_Chile
https://www.eso.org/public/news/eso2612/
https://apod.nasa.gov/apod/ap070114.html
https://science.nasa.gov/saturn/
https://science.nasa.gov/sun/
https://www.nobelprize.org/prizes/physics/1921/einstein/biographical/
https://asd.gsfc.nasa.gov/blueshift/index.php/2015/11/25/100-years-of-general-relativity/
https://www.eso.org/public/videos/eso2612d/

https://apod.nasa.gov/apod/ap260821.html

#space #blackhole #astrophysics #astrophotography #photography #astronomy #science #nature #NASA #apod #ESA #ESO

Researchers have successfully created quark-gluon plasma, the primordial matter that existed shortly after the Big Bang, by colliding relatively small atomic nuclei (oxygen-16 and neon-20). This extreme state of matter occurs when temperatures and densities are so high that protons and neutrons dissolve, allowing their constituent quarks and gluons to move freely.
#ParticlePhysics #Astrophysics #NuclearPhysics #sflorg
https://www.sflorg.com/2026/08/phy08202601.html

🕳️ oddquark // Black Hole Watch — 2026-08-20

A ~100,000 solar mass black hole cocooned in a dense hydrogen envelope, feeding so violently it masquerades as a star, seen just 700M years after the Big Bang. Quasi-stars are real?! 🤯

🔗 https://www.yahoo.com/news/science/articles/jwst-just-spotted-black-hole-165952805.html

#BlackHole #Astrophysics #GravitationalWaves #EventHorizon

Iris Number System 04 Volume IV Physics Etc : Free Download, Borrow, and Streaming : Internet Archive https://archive.org/details/iris-number-system-04-volume-iv-physics-etc/page/n7/mode/2up

A new chapter has been added about non-thermal energy generation.

You will, of course, ignore this, even though it is the sort of thing we are supposedly seeking. Instead you will continue with your stupid hot fusion experiments, etc.

#physics #mathematics #science #chemistry #astrophysics #engineering #energySecurity #ecology #globalWarming #desalination #waterSupply

Blue Rays: New Horizons High-Res Farewell to Pluto

This is the highest-resolution color departure shot of Pluto's receding crescent from NASA's New Horizons spacecraft, taken when the spacecraft was 120,000 miles (200,000 kilometers) away from Pluto. Shown in approximate true color, the pict...

More: https://images.nasa.gov/details/PIA21590
Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute

#pluto #newhorizons #astrodon #astronomy #astrophotography #astrophysics