APOD from 2025-06-13
Rubin's #Galaxy
#Hubble captures UGC 2885, a giant spiral galaxy 232 million light-years away and 800,000 light-years wide with 1 trillion stars. It's part of a study on galaxy growth and honors Vera Rubin's dark matter research. A new coin and observatory commemorate her contributions.
HD image at https://apod.nasa.gov/apod/ap250613.html#space #astronomy #telescope #universe
What Happens If We Bring the Sun to Earth?
Daily report 
Here are today's most popular trending hashtags 
on our website 
️:
#universe, #ice, #llama3, #podcast, #artificialintelligence, #ocean, #debian, #photography, #microsoft, #chatgpt, #freesoftware, #windows, #physics, #galaxy
Stay tuned!
Let’s do an experiment: You’ll need two hands, a pen, and a sheet of paper. Place your left hand on your chest or on your carotid artery, take the pen in your right hand, and move it steadily across the paper while recording the beats and pauses. What you create resembles an ECG – but more importantly, you’ve just converted mechanical vibrations into a digital form. These can be translated into numerical values, fed into a computer, and transformed into sound using special software. This is how the sound of your heartbeat is created.
What is sound from a physical perspective? It’s a mechanical vibration that propagates through a medium. The denser the medium, the faster sound travels: about 343 m/s in air, around 1500 m/s in water, and even faster in solids. Since space is a vacuum – the area between celestial bodies (stars, planets, etc.) is almost empty and extremely low in density – it’s impossible for sound to travel through space.
So what is “the sound of the universe”? It can best be explained using pulsars. A pulsar recording shows a series of periodic impulses (just like your heartbeat), which can be digitized and converted into sound. The peaks in the recording mark the moments when the pulsar emits radiation in the direction of the observer; the pauses represent the times when the radiation points elsewhere.
These recordings have nothing to do with the actual sounds of the objects themselves. Still, in a way, they allow us to make space audible.
©Animation & Collage: A. Kazantsev | MPIfR
The Largest Star in the Universe – Size Comparison
A new asteroid threat for Earth. From Venus. Astronomers warn that Venus’ orbit is hiding rocks that could change their course towards our planet.
https://www.news-cafe.eu/?go=news&n=13681
#space #astrophysics #astronomy #science #cosmos #research #universe #solarsystem #earth #venus
Chinese astronauts add debris shield to Tiangong space station during 8-hour spacewalk
APOD from 2025-06-04
A Milky Road to the Rubin Observatory
The Vera C. Rubin Observatory in Chile, now in final testing, will soon scan the entire visible sky every few nights. Its 8-meter mirror will detect supernovas, asteroids, comets, and variable stars while mapping the #universe's structure. The featured image shows our Milky Way from Rubin.
HD image at https://apod.nasa.gov/apod/ap250604.html#space #astronomy #galaxy
When #Infinity Defied the #Logicians : Medium
How to keep #Tech workers engaged in the age of #AI : Misc
#DarkEnergy #Bombshell sparks race to find a new #Model of the #Universe : New Sci
Check our latest #KnowledgeLinks
Supersonic turbulence and the first stars in the Universe.
New simulations indicate that the chaos of primordial gas was decisive for the formation of the first stars.
Read more: https://omniletters.com/supersonic-turbulence-first-stars/
@breadandcircuses
2/
"A religion, old or new, that stressed the magnificence of the Universe as revealed by modern science might be able to draw forth reserves of reverence and awe hardly tapped by the conventional faiths.”
An unknown poster
@breadandcircuses
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“How is it that hardly any major religion has looked at science and concluded, “This is better than we thought! The Universe is much bigger than our prophets said, grander, more subtle, more elegant?” Instead they say, “No, no, no! My god is a little god, and I want him to stay that way.”
An unknown poster
Przez trzy noce polowałem. Polowałem na dziury w chmurach.
Pierwsza noc to zaledwie 20 minut, drugiej nocy wyszło około 1h17m. Z prognoz pogody wychodziło mi, że z 31.05 na 01.06 nic się nie da wypalić, bo chmury i deszcz. Po północy okazało się, że niebo jest czyste i szybko wystawiłem i ustawiłem sprzęt. Z odpalonym antistorm.eu i WheatherRadar i sprawdzaniem co chwilę wszystkiego naocznie, dopaliłem 1h45m.
Z całości Siril złożył 548 klatek po 20 sekund, czyli nieco ponad 3 godziny.
Przed Państwem The Eastern Veil Nebula[1] aka NGC 6992 aka Ksenomorf. ;-)
#astrofotografia #astronomia #kosmos #astrophotography #astronomy #universe #astrofotografie #seestars50 #siril #graxpert
Super solar storm hit Earth 14,300 years ago, scientists found. A similar eruption today would throw the global economy into chaos.
https://www.news-cafe.eu/?go=news&n=13670
#science #research #physics #solarsystem #space #cosmos #earth #universe
APOD from 2025-05-27
Zeta and Rho Ophiuchi with Milky Way
Captured from South Africa, this stunning image features the Milky Way, Rho Ophiuchi cloud complex, and Zeta Ophiuchi #Nebula. Red signals hydrogen gas nebulas; blue indicates dust reflecting young starlight. Notable objects like Antares, M4, and the Blue Horsehead nebula are also visible in this 17-hour composite.
HD image at https://apod.nasa.gov/apod/ap250527.html#space #astronomy #galaxy #universe
#Autaxys aims to provide a comprehensive framework for understanding #reality, encompassing the physical #universe, the emergence of #life and #consciousness, and the #nature of #knowledge itself. https://qnfo.org/releases/2025/New+Way+of+Seeing/_New+Way+of+Seeing
A new map of the universe may turn gravity on its head
Scientists have released the largest map of the universe ever compiled. Millions of galaxies have been surveyed, stretching back 11 billion years, most of the age of the cosmos. According to many scientists, this data, combined with other observations, presages a major reassessment of what we know about the universe: possibly, for the first time, revealing a crack in Einstein’s theory of gravity.
Bip-bop the Bot 
