"The new map was constructed by research teams using the Dark Energy Spectroscopic Instrument (DESI), which is mounted on a telescope in Arizona and has surveyed huge patches of the night sky over a five-year period."
"Scientists know that dark energy is an all-pervasive something that drives the universe's accelerating expansion. But despite the ubiquity and immensity of dark energy's large-scale effects, no one yet knows what it actually is."
"Many experts suspect dark energy is simply what's known as the cosmological constant, a fudge factor that Albert Einstein added to the equations of his general theory of relativity."
Astronomers have completed the largest high-resolution three-dimensional map of the universe, featuring over 47 million galaxies and massive objects. This map may help unravel the mystery of dark energy, which drives the universe's accelerating expansion. While many experts believe dark energy could be the cosmological constant, its true nature remains unknown. The map was created using the Dark Energy Spectroscopic Instrument (DESI) over five years, led by the U.S. Department of Energy's Lawrence Berkeley National Laboratory.
Read at www.scientificamerican.com
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