The Seagull Nebula.
Celestron NexStar Evolution 6 + ZWO ASI585MC Pro.
300mm, f2, 200 exposures of 60’’.
#telescope #telescopes #celestron #celestrontelescope #celestronnexstar #nexstarevolution #nexstarevolution6 #zwo #zwoasi #zwoasi585mc #astro #astrophoto #astrophotos #astrophotography #astrophotographer #spacephotography #astronomy #spaceexploration #nasa #universe #space #deepsky #deepspace #nebula #seagull #seagullnebula #ic2177
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
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
https://bigthink.com/starts-with-a-bang/turn-einsteins-equations-newtons-law/
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
https://www.livescience.com/space/asteroids/potentially-hazardous-pyramid-size-asteroid-will-make-its-closest-flyby-of-earth-for-more-than-100-years-this-wednesday
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.
https://badastronomy.beehiiv.com/p/is-the-universe-misbehaving-again
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:
Who doesn’t love a good baby picture? The clearest and most precise images yet of the universe in its infancy — the earliest cosmic time accessible to humans — have been produced by an international team of astronomers. Phys.org has the story:
A European space telescope launched to explore the dark universe has released a trove of new data on distant galaxies. @AssociatedPress :
https://apnews.com/article/euclid-space-telescope-dark-energy-731a1c70f3603418e6c07a1012258adb
A catalogue of more than 380,000 #galaxies: the first comprehensive data release of the #Euclid space telescope sets standards and provides insights into the depths of the #universe - thanks in part to strong German participation !
https://mpg.de/24349746/euclid-data-release
@mpi_astro
@MPE_Garching
A recent James Webb Space Telescope discovery might suggest our universe is trapped inside a black hole! Also, each and every black hole in our universe could be the doorway to another "baby universe. Wait, really? We were living in a black hole all this time? #blackhole #universe #WTF https://www.space.com/space-exploration/james-webb-space-telescope/is-our-universe-trapped-inside-a-black-hole-this-james-webb-space-telescope-discovery-might-blow-your-mind
On the cover of Science Magazine this week
Interstellar Dust: Mapping dust properties in the Milky Way
Credit image: ESO/Serge Brunier
https://www.science.org/toc/science/387/6739?et_rid=1080503712&et_cid=5559808
The Bubble Nebula (NGC 7635) is a stunning, 7-light-year-wide bubble formed by a massive star 7,100 light-years away in Cassiopeia. The star’s winds blow gas at over 6.4 million km/h, creating this cosmic shape. The nebula's bright colors are from oxygen, hydrogen, and nitrogen gases. Discovered in 1787, it's one of the most fascinating objects in space.
Credit: NASA, ESA, Hubble Heritage Team
#space #universe #nasa #astro #astrophysics #physics #science
Did you know we're essentially all #STARS? That is to say, we’re actually the children of stars!
How does it feel to have stars for parents? 
https://bigthink.com/the-past/how-we-discovered-were-all-made-of-star-stuff/
(You can skip to the last paragraph :)
#Cosmologists Try a New Way to Measure the Shape of the #Universe
Is the universe flat and infinite, or something more complex? 15 scientists from seven countries known as Compact collaboration has devised a new way of finding #topological clues.
Looking at the cosmic microwave background (CMB), photons from early universe The CMB tells us how the universe looked just 380,000 years after the #BigBang, when light was first able to travel through the cosmos unimpeded.
https://www.quantamagazine.org/cosmologists-try-a-new-way-to-measure-the-shape-of-the-universe-20250127/
Flying to the Horsehead.
@celestronuniverse NexStar Evolution 6 + @zwoasi ASI585MC Pro + HyperStar.
#telescope #telescopes #celestron #celestrontelescope #celestronnexstar #nexstarevolution #nexstarevolution6 #zwo #zwoasi #zwoasi585mc #astro #astrophoto #astrophotos #astrophotography #astrophotographer #spacephotography #astronomy #spaceexploration #nasa #universe #space #deepsky #deepspace #nebula #horsehead #horseheadnebula #b33 #barnard33 #ic434 #ngc2023la #b33 #barnard33 #ic434 #ngc2023
**Terence Tao on how we measure the cosmos**
Part one: https://www.youtube.com/watch?v=YdOXS_9_P4U.
Part two: https://www.youtube.com/watch?v=hFMaT9oRbs4.
#Video #Cosmos #Universe #Maths #Mathematics #Math #Science #Astronomy @science @astronomy
