A spherical shell-like structure 1 billion light-years in diameter named Ho’oleilana is discovered in the distribution of relatively nearby galaxies. We posit this is the 1st observation of an individual Baryon Acoustic Oscillation (BAO).
100 years ago tonight: Edwin Hubble discovers the Universe
This photographic glass plate captured by Edwin Hubble on October 6, 1923, at Carnegie’s Mount Wilson Observatory forever changed our understanding of the universe and paved the way for modern astronomy.
We have a new post in our Blog article series illuminating 🪔the #science background 👩🏻🔬 👨🏾🔬 of ##ESAEuclid 🛰️ and the techniques we'll employ for high-precision #cosmology: "Measuring the Universe with Baryon Acoustic Oscillations"
1112 authors for a space mission 🛰️ reference paper seems ... adequate 🤷🏽😯😁
We, the @ec_euclid will publish five main reference papers aimed at the astronomy community about the #ESAEuclid mission, the #Euclid instruments, both cosmology and other astronomy science possibilities, as well as the cosmological simulations used to test all procedures.
Available coming Tuesday, 23 May, 12:00 CEST (and on arXiv a few hours later). Stay tuned!
Finally, after months of work, the #ESAEuclid Early Release Observation images, data, first science results, and #Euclid mission reference papers have been released. You can read more in our blog post, which has links to the papers, the press releases, and everything else:
I figured it was finally time for a new #introduction post, so here goes.
Hi, I’m Deanna (they/them) :blobfoxwave:. I’m nonbinary and genderfluid. I’ve moved around Europe a lot, before finding my home in #Finland. I have #misophonia and I’ve been dealing with #LongCovid since mid 2020.
I work as a physicist studying some of the cool stuff that happened in the early universe. I’m very passionate about science #outreach and I’ve been doing #cosmology livestreams - called #CupOfCosmology - since late 2015 (link in bio). I'm also open about my struggles with #MentalHealth in academia, and my experience as #LGBTQInSTEM and as a (perceived) #WomanInSTEM.
I love meeting new people, so feel free to follow and interact!
Astronomers are Working to Put a Radio Telescope on the Far Side of the Moon by 2025
Thanks to JWST, astronomers can see almost back to the beginning of the Universe, but there's still a 400 million-year gap that eludes even this mighty telescope. To see into the cosmic "dark ages," we'll need a radio telescope without interference from Earth's ceaseless chatter. A new mission called LuSEE-Night is under construction and is scheduled to be delivered to the far side of the Moon in 2025, giving it a pristine view of the sky. This mission is a pathfinder, hoping to demonstrate that the signal from the early Universe is present, paving the way for future, even larger telescopes on the lunar farside.
"A brief history of time" by Stephen Hawking is probably the most influential semi-popular #science book ever written in #physics, #astrophysics, #cosmology , one that brought generations of students into these fields.
Do you know of any equivalent books in other fields of science, STEM or other ? Reply ⬇️
Boosting will make everybody on #Mastodon smarter !
a map of the galaxy density field spanning over 700 million light years. Note how insignificant is our Local Group, that is, our home group of galaxies, in the grand scheme of things!
Check out our paper on the vast expanses discovered and charted by our Cosmicflows research program, published recently in the Cosmo of ’69 Cosmology Blog. Many thanks to Jenny Wagner and her team for their invitation to write in this new venue.
a very interesting study in the #arXiv today: "An effective description of Laniakea and its backreaction: Impact on Cosmology and the local determination of the Hubble constant"
by Leonardo Giani, Cullan Howlett, Khaled Said, Tamara Davis, and Sunny Vagnozzi
Ivan will be speaking in the Daryll Forde Seminar Room, 2nd Floor of the Anthro building.
NB due to building work, you need to use the main entrance of the Archaeology Institute round the corner in Gordon Square. Please plan to arrive between 6:15-6:30 if possible.
Scientists have discovered that cosmic structures grow slower than Einstein's Theory of General Relativity predicts, with dark energy playing a more dominant inhibitory role than previously thought. This finding may reshape our understanding of dark matter, dark energy, and fundamental cosmic theori
Could recent information about dark energy fundamentally alter our understanding of the universe? It's possible. Here's a deep dive into what dark energy is and how new results on the expansion history of the universe may change everything we thought we knew.
Universe Defies Einstein’s Predictions: Cosmic Structure Growth Mysteriously Suppressed (scitechdaily.com)
Scientists have discovered that cosmic structures grow slower than Einstein's Theory of General Relativity predicts, with dark energy playing a more dominant inhibitory role than previously thought. This finding may reshape our understanding of dark matter, dark energy, and fundamental cosmic theori