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We're a Brazilian IT Community. We love IT/DevOps/Cloud, but we also love to talk about life, the universe, and more. | Nós somos uma comunidade de TI Brasileira, gostamos de Dev/DevOps/Cloud e mais!

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#universe

8 posts8 participants0 posts today
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Mikko Tuomi

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.

esa.int/ESA_Multimedia/Images/

In the centre is an elliptical galaxy, seen as an oval-shaped glow around a small bright core. Around this is wrapped a broad band of light, appearing like a spiral galaxy stretched and warped into a ring, with bright blue lines drawn through it where the spiral arms have been stretched into circles. A few distant objects are visible around the ring on a black background. Credit: ESA/Webb, NASA & CSA, G. Mahler
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formuchdeliberation

Universe’s First Light Has Just Been Revealed in Stunning Detail : ScienceAlert…

After five years of staring unblinking at the sky, the Atacama Cosmology Telescope #ACT has compiled the most detailed map we've ever seen of the cosmic microwave background – the faint light that permeates the #Universe from just 380,000 years after the #BigBang...

formuchdeliberation.wordpress.

for much deliberation · Universe’s First Light Has Just Been Revealed in Stunning Detail : ScienceAlert…After five years of staring unblinking at the sky, the Atacama Cosmology Telescope #ACT has compiled the most detailed map we’ve ever seen of the cosmic microwave background – the faint light…
Public
Bob Tregilus

Wow, a stunning image by JWST of an Einstein ring, a more distant galaxy's light being bent by gravitational lensing around a much closer galaxy. The closer galaxy is an elliptical and the much more distant galaxy, which in this case is perfectly aligned behind the foreground elliptical thereby forming the ring, is a spiral galaxy. I think this beautiful image is going to be my desktop for awhile. Just stunning!

esa.int/ESA_Multimedia/Images/

www.esa.intWebb spies a spiral through a cosmic lensSpying a spiral through a cosmic lens (Webb telescope image)
#Astronomy#AstroPhysics#Universe
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Flipboard Science Desk

A "potentially hazardous" pyramid-size asteroid is about to zoom past Earth at around 48,000 mph (77,300 km/h) this week as it reaches its closest point to our planet in more than 100 years. But the hefty space rock poses zero risk of hitting us now or in the future, data shows. @LiveScience
livescience.com/space/asteroid

Live Science · 'Potentially hazardous' pyramid-size asteroid will make its closest flyby of Earth for more than 100 years this WednesdayBy Harry Baker
#Asteroid#Space#Earth
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Mikko Tuomi

Back in 1915, Einstein put forth his most ambitious idea: the general theory of relativity, combining #gravity with #relativity to create an entirely new conception of our #Universe.

In most conventional circumstances, the predictions of Einstein’s theory are indistinguishable from that of its predecessor: Newton’s law of universal gravitation.

Is it possible, then, to somehow reduce Einstein’s equations down to Newton’s equations?

#physics
bigthink.com/starts-with-a-ban

Big ThinkAsk Ethan: Can we turn Einstein's equations into Newton's law?Einstein's General Relativity has reigned supreme as our theory of gravity for over a century. Could we reduce it back down to Newton's law?
Public
Mikko Tuomi

Dark #energy is probably doing something weird, and we don’t know why.

Astronomers just announced they’re seeing more evidence that dark energy — the mysterious substance that pervades the #cosmos and causes the expansion of the #universe to accelerate — is not a constant over time, but may instead be weakening.

It means dark energy has changed over time, getting weaker and changes how we think the universe behaves in a fundamental way.

badastronomy.beehiiv.com/p/is-

A fairly typical DES image of the deep sky, filled with stars and many thousands of galaxies. Credit: DES Collaboration/NOIRLab/NSF/AURA/M. Zamani
Public
formuchdeliberation

The Brighter Side of News: Scientists think they discovered what existed before the Big Bang…

#Darkmatter has baffled physicists for nearly a century, quietly shaping our #universe 's unseen framework. Invisible yet influential, it provides the gravity necessary to hold #galaxies together... #science #space #physics #bigbang

formuchdeliberation.wordpress.

for much deliberation · The Brighter Side of News: Scientists think they discovered what existed before the Big Bang…#Darkmatter has baffled physicists for nearly a century, quietly shaping our #universe ‘s unseen framework. Invisible yet influential, it provides the gravity necessary to hold #galaxies toge…
Public
Flipboard Science Desk

Most of the galaxies in the universe rotate in the same direction. Why this happens highlights a gap in our understanding of how the universe works. "It is still not clear what causes this to happen, but there are two primary possible explanations," says astronomer Lior Shamir of Kansas State University. @ScienceAlert explores both:

flip.it/r0lG1-

ScienceAlert · The Entire Universe Could Exist Inside a Black Hole – Here's WhyWhen you peer out into the depths of the cosmos, a mystery lies there, waiting.
#Science#Space#Universe
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:rss: Hacker News

Oxygen discovered in most distant known galaxy
eso.org/public/news/eso2507/
#ycombinator #ESO #eso_org #Astronomy #Astrophysics #Astronomie #Suedsternwarte #telescopes #detectors #comets #planets #stars #galaxies #nebulae #universe #NTT #VLT #VLTI #ALMA #ELT #La_Silla #Paranal #Garching #Chile

www.eso.orgOxygen discovered in most distant known galaxyTwo different teams of astronomers have detected oxygen in the most distant known galaxy, JADES-GS-z14-0. The discovery, reported in two separate studies, was made possible thanks to the Atacama Large Millimeter/submillimeter Array (ALMA), in which the European Southern Observatory (ESO) is a partner. This record-breaking detection is making astronomers rethink how quickly galaxies formed in the early Universe.
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