Dark energy/matter seems to be changing or evolving, rattling our view of universe

Like living in the Dark Ages again? 😊 I personally never liked these terms, i.e. Dark Energy or Dark Matter.

"If dark energy is in fact weakening, it would likely mean that science's understanding of how the universe works will need to be rewritten.

The new findings come from the Dark Energy Spectroscopic Instrument (DESI), which sits on a telescope at the Kitt Peak National Observatory in the U.S. state of Arizona. ..."

"The Dark Energy Spectroscopic Instrument used millions of galaxies and quasars to build the largest 3D map of our universe to date. Combining the DESI data with other experiments shows signs that the impact of dark energy may be weakening over time — and the standard model of how the universe works may need an update. 

Key Takeaways

• The DESI collaboration published a new analysis of dark energy using their first three years of collected data, which spans nearly 15 million galaxies and quasars.
• Researchers combined the DESI data with information from studies of the cosmic microwave background, supernovae, and weak gravitational lensing.
• The standard model of cosmology struggles to explain all the observations when taken together — but a model where dark energy’s influence changes over time seems to fit the data well.

..."

Dark energy seems to be changing, rattling our view of universe "Dark energy, the mysterious force thought to be driving the ever-faster expansion of the universe, appears to be changing over time, according to new observations released Wednesday."

New DESI Results Strengthen Hints That Dark Energy May Evolve

DESI DR2 Results: March 19 Guide

DESI is a state-of-the-art instrument and can capture light from up to 5,000 celestial objects simultaneously. Mayall Telescope interior

Major Upgrade Of Kitt Peak National Observatory

Posted: 4/3/2019

Just read DESI lenses see first light The Dark Energy Spectroscopic Instrument will begin operation later this year. (published 4/3/19)

After decades of being kind of overshadowed by other astronomical observatories, Kitt Peak near Tucson, Arizona is going to become again a world leading research institution.

“On April 1 the dome of the Mayall Telescope … opened to the night sky, and starlight poured through the assembly of six large lenses that were carefully packaged and aligned for a new instrument that will launch later this year. Just hours later, scientists produced the first focused images with these precision lenses—the largest is 1.1 meters in diameter” What an incredible moment!

This new telescope features the “Dark Energy Spectroscopic Instrument, or DESI”. A marvel of technology:

“The finished DESI will measure the light of tens of millions of galaxies reaching back 12 billion light-years across the universe. It is expected to provide the most precise measurement of the expansion of the universe and provide new insight into dark energy, which scientists explain is causing this expansion to accelerate.

DESI’s array of 5000 independently swiveling robotic positioners, each carrying a thin fiber-optic cable, will automatically move into preset positions with accuracy to within several microns (millionths of a meter). Each positioner is programed to point its fiber-optic cable at an object to gather its light.

” (emphasis added)

Stay tuned!