…copëz hartografike më e madhe e universit bërë ndonjëherë – 3 vite impenjim me bjeshkët e të dhënave nga Dark Energy Spectroscopic Instrument (DESI) na e ofrojnë qartësinë se universi duke u zgjeruar – gjë që e dinim për 1 shekull tashmë (madje në v. 2011 qe ndarë dhe Nobel për zbulimin e përshpejtimit universal gjatë këtij zgjerimi), mirëpo ndryshe ta konfirmosh – publikuar dje, Physics Magazine, nga APS (American Physics Society)…
(sguraziu)
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(October 6, 2025 https://physics.aps.org/articles/v18/130 / Matteo Viel – Astroparticle and Gravitational Physics Group, International School for Advanced Studies (SISSA), Trieste, Italy)
For nearly a century, we have known that our Universe is expanding. For the past quarter-century, we have also known that this expansion is accelerating, a discovery that earned the 2011 Nobel Prize in Physics. But what is the mysterious “dark energy” that drives this acceleration? The simplest explanation involves what Einstein dubbed a “cosmological constant” (Λ) and implies that dark energy is a constant energy inherent to spacetime itself. This idea is the cornerstone of the standard model of cosmology.
Now the Dark Energy Spectroscopic Instrument (DESI) has created a cosmic map of unprecedented scale. Its findings, combined with those from other observations, suggest that dark energy might not be so constant after all, a tantalizing hint that our understanding of the cosmos may be on the verge of a major revision.
[ attached: a slice of DESI’s first three years of data – constituting the largest 3D map of the Universe made so far ]
