Amazing research out today:
The DESI survey has created the largest-ever 3D map of the structure of the universe.
It has also found intriguing (though tentative) evidence that cosmic "dark energy" is not what we thought -- a hint of new, unknown physics.
https://newscenter.lbl.gov/2024/04/04/desi-first-results-make-most-precise-measurement-of-expanding-universe/ #science #astronomy #space #tech
Corey S Powell
in reply to Corey S Powell • • •Seriously, how cool is this?
Cosmologists have now measured how the expansion of the universe changes over time, to an accuracy of 1%.
They did it by finding frozen sound waves from the Big Bang, and then tracking them across 11 billion years. People can do these things!
https://www.youtube.com/watch?v=hoOyOAAj4iY #science #nature #astronomy #space
Baryon Acoustic Oscillations
YouTube