Experiment captures atoms in free fall to look for gravitational anomalies caused by the Universe’s missing energy. Researchers at UC Berkeley have enhanced the precision of gravity experiments using an atom interferometer combined with an optical lattice, significantly extending the time atoms can be held in free fall. Despite not yet finding deviations from Newton’s [...]]]> https://scitechdaily.com/beyond-gravity-uc-berkeleys-quantum-leap-in-dark-energy-research/feed/ 4 https://scitechdaily.com/beyond-einstein-groundbreaking-map-of-the-universe-redefines-cosmic-models/ https://scitechdaily.com/beyond-einstein-groundbreaking-map-of-the-universe-redefines-cosmic-models/#comments Sun, 09 Jun 2024 14:06:52 +0000 https://scitechdaily.com/?p=390469

The DESI collaboration is examining the universe’s accelerating expansion through comprehensive mapping from its early stages to the present. Their findings challenge traditional cosmic models and suggest new insights into dark energy, all while utilizing groundbreaking, unbiased research methods. A team of researchers, including an astrophysicist from The University of Texas at Dallas, as part [...]]]> https://scitechdaily.com/beyond-einstein-groundbreaking-map-of-the-universe-redefines-cosmic-models/feed/ 13 https://scitechdaily.com/how-thermodynamics-unlocks-the-secrets-of-an-expanding-universe/ https://scitechdaily.com/how-thermodynamics-unlocks-the-secrets-of-an-expanding-universe/#comments Wed, 17 Apr 2024 10:17:31 +0000 https://scitechdaily.com/?p=375930

The shift from a decelerating expansion regime (in the radiation- and matter-dominated era) to an accelerating expansion regime (in the dark energy-dominated era) resembles a thermodynamic phase transition, according to an article in Results in Physics by scientists affiliated with São Paulo State University. The idea that the Universe is expanding dates from almost a [...]]]> https://scitechdaily.com/how-thermodynamics-unlocks-the-secrets-of-an-expanding-universe/feed/ 1 https://scitechdaily.com/unraveling-dark-energy-and-cosmic-expansion-with-an-11-ton-time-machine/ https://scitechdaily.com/unraveling-dark-energy-and-cosmic-expansion-with-an-11-ton-time-machine/#comments Sun, 14 Apr 2024 00:12:53 +0000 https://scitechdaily.com/?p=373024

The Dark Energy Spectroscopic Instrument (DESI), mounted on a telescope in Arizona, has created the largest 3-D map of the cosmos, mapping over 30 million galaxies and 3 million quasars. This monumental task, a collaboration of over 900 researchers, helps us understand the universe’s expansion and the role of dark energy. We now have the [...]]]> https://scitechdaily.com/unraveling-dark-energy-and-cosmic-expansion-with-an-11-ton-time-machine/feed/ 2 https://scitechdaily.com/dark-energy-revealed-through-largest-3d-map-of-the-universe-ever-made/ https://scitechdaily.com/dark-energy-revealed-through-largest-3d-map-of-the-universe-ever-made/#respond Tue, 09 Apr 2024 20:48:13 +0000 https://scitechdaily.com/?p=372424

Researchers have used the Dark Energy Spectroscopic Instrument to make the largest 3D map of our universe and world-leading measurements of dark energy, the mysterious cause of its accelerating expansion. DESI mapped galaxies and quasars with unprecedented detail, creating the largest 3D map of the universe ever made and measuring how fast the universe expanded [...]]]> https://scitechdaily.com/dark-energy-revealed-through-largest-3d-map-of-the-universe-ever-made/feed/ 0 https://scitechdaily.com/science-simplified-what-are-dark-matter-and-dark-energy/ https://scitechdaily.com/science-simplified-what-are-dark-matter-and-dark-energy/#comments Sun, 31 Mar 2024 04:01:30 +0000 https://scitechdaily.com/?p=366604

What Are Dark Matter and Dark Energy? There’s something amiss in the cosmos. Mysterious influences seem to be stretching the universe apart and clumping stuff together in unexpected ways, but we can’t see or touch them. Scientists call these influences dark energy and dark matter. Humans have studied the sky for many thousands of years, [...]]]> https://scitechdaily.com/science-simplified-what-are-dark-matter-and-dark-energy/feed/ 8 https://scitechdaily.com/ai-unlocks-the-secrets-of-dark-energy-in-groundbreaking-study/ https://scitechdaily.com/ai-unlocks-the-secrets-of-dark-energy-in-groundbreaking-study/#comments Wed, 13 Mar 2024 17:23:09 +0000 https://scitechdaily.com/?p=365428

A UCL-led research team has used artificial intelligence (AI) techniques to infer the influence and properties of dark energy more precisely from a map of dark and visible matter in the Universe covering the last seven billion years. The study, carried out by the Dark Energy Survey collaboration, doubled the precision at which key characteristics [...]]]> https://scitechdaily.com/ai-unlocks-the-secrets-of-dark-energy-in-groundbreaking-study/feed/ 5 https://scitechdaily.com/deciphering-the-dark-the-accelerating-universe-and-the-quest-for-dark-energy/ https://scitechdaily.com/deciphering-the-dark-the-accelerating-universe-and-the-quest-for-dark-energy/#comments Sun, 10 Mar 2024 08:32:48 +0000 https://scitechdaily.com/?p=355096

Dark energy’s role in propelling the universe’s accelerated expansion presents a pivotal challenge in astrophysics, driving ongoing research and space missions dedicated to uncovering the nature of this mysterious force. Some 13.8 billion years ago, the universe began with a rapid expansion we call the Big Bang. After this initial expansion, which lasted a fraction [...]]]> https://scitechdaily.com/deciphering-the-dark-the-accelerating-universe-and-the-quest-for-dark-energy/feed/ 7 https://scitechdaily.com/exposing-dark-matter-euclid-is-on-the-trail-of-the-dark-side-of-the-universe/ https://scitechdaily.com/exposing-dark-matter-euclid-is-on-the-trail-of-the-dark-side-of-the-universe/#respond Mon, 22 Jan 2024 08:19:56 +0000 https://scitechdaily.com/?p=345239

Euclid space telescope delivers first scientific images. Two things are needed to understand how the universe came into being and how it has evolved to its present form. Cosmological computer models employ the laws of physics to depict the universe’s expected appearance today, while observations made with telescopes check whether these models are correct. The [...]]]> https://scitechdaily.com/exposing-dark-matter-euclid-is-on-the-trail-of-the-dark-side-of-the-universe/feed/ 0 https://scitechdaily.com/cambridge-researchers-discover-new-way-to-measure-dark-energy/ https://scitechdaily.com/cambridge-researchers-discover-new-way-to-measure-dark-energy/#comments Sat, 23 Sep 2023 12:09:22 +0000 https://scitechdaily.com/?p=310630

Researchers from the University of Cambridge have discovered a new way to measure dark energy – the mysterious force that makes up more than two-thirds of the universe and is responsible for its accelerating expansion – in our own cosmic backyard. The researchers found that it may be possible to detect and measure dark energy [...]]]> https://scitechdaily.com/cambridge-researchers-discover-new-way-to-measure-dark-energy/feed/ 1 https://scitechdaily.com/universe-defies-einsteins-predictions-cosmic-structure-growth-mysteriously-suppressed/ https://scitechdaily.com/universe-defies-einsteins-predictions-cosmic-structure-growth-mysteriously-suppressed/#comments Thu, 14 Sep 2023 08:21:26 +0000 https://scitechdaily.com/?p=308699

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 theories. As the universe evolves, scientists expect large cosmic structures to grow at a [...]]]> https://scitechdaily.com/universe-defies-einsteins-predictions-cosmic-structure-growth-mysteriously-suppressed/feed/ 3 https://scitechdaily.com/at-the-universes-edge-scientists-put-einstein-and-euler-to-the-test/ https://scitechdaily.com/at-the-universes-edge-scientists-put-einstein-and-euler-to-the-test/#comments Wed, 26 Jul 2023 20:53:17 +0000 https://scitechdaily.com/?p=295343

A team from the University of Geneva has developed the first method for testing together Einstein’s and Euler’s theories for the accelerating expansion of the Universe and dark matter. The universe serves as a unique testing ground for the laws of physics, particularly the laws proposed by Euler and Einstein. Euler’s laws shed light on [...]]]> https://scitechdaily.com/at-the-universes-edge-scientists-put-einstein-and-euler-to-the-test/feed/ 5 https://scitechdaily.com/on-the-trail-of-a-mysterious-force-in-space-scientists-shed-new-light-on-dark-energy/ https://scitechdaily.com/on-the-trail-of-a-mysterious-force-in-space-scientists-shed-new-light-on-dark-energy/#comments Mon, 17 Jul 2023 06:21:45 +0000 https://scitechdaily.com/?p=290992

An initial study of dark energy using eROSITA suggests that it is evenly dispersed across both space and time. Edwin Hubble’s observation of distant galaxies in the 1920s led to the groundbreaking conclusion that our universe is in a state of expansion. It wasn’t until 1998, though, when scientists studying Type Ia supernovae came to [...]]]> https://scitechdaily.com/on-the-trail-of-a-mysterious-force-in-space-scientists-shed-new-light-on-dark-energy/feed/ 1 https://scitechdaily.com/unveiling-cosmic-mysteries-euclid-launches-on-epic-voyage-to-map-the-universes-dark-side/ https://scitechdaily.com/unveiling-cosmic-mysteries-euclid-launches-on-epic-voyage-to-map-the-universes-dark-side/#respond Sun, 02 Jul 2023 23:36:18 +0000 https://scitechdaily.com/?p=289129

NASA is contributing to the European Space Agency mission, which will complement dark energy studies by the agency’s upcoming Nancy Grace Roman Space Telescope. The ESA (European Space Agency) Euclid spacecraft lifted off from Cape Canaveral Space Force Station in Florida at 11:12 a.m. EDT on Saturday, July 1, beginning its mission to study why [...]]]> https://scitechdaily.com/unveiling-cosmic-mysteries-euclid-launches-on-epic-voyage-to-map-the-universes-dark-side/feed/ 0 https://scitechdaily.com/euclid-dark-universe-space-telescope-lifts-off-on-quest-to-unravel-deepest-cosmic-mysteries/ https://scitechdaily.com/euclid-dark-universe-space-telescope-lifts-off-on-quest-to-unravel-deepest-cosmic-mysteries/#comments Sun, 02 Jul 2023 09:17:05 +0000 https://scitechdaily.com/?p=288925

ESA’s Euclid spacecraft lifted off aboard a SpaceX Falcon 9 rocket from Cape Canaveral Space Force Station in Florida, USA, at 11:12 a.m. EDT on July 1, 2023. The successful launch marks the beginning of an ambitious mission to uncover the nature of two mysterious components of our Universe: dark matter and dark energy, and [...]]]> https://scitechdaily.com/euclid-dark-universe-space-telescope-lifts-off-on-quest-to-unravel-deepest-cosmic-mysteries/feed/ 1 https://scitechdaily.com/unraveling-the-universe-groundbreaking-measurement-shakes-up-physics/ https://scitechdaily.com/unraveling-the-universe-groundbreaking-measurement-shakes-up-physics/#comments Wed, 05 Apr 2023 02:58:12 +0000 https://scitechdaily.com/?p=266195

When it comes to measuring how fast the Universe is expanding, the result depends on which side of the Universe you start from. An EPFL study has calibrated the best cosmic yardsticks to unprecedented accuracy, shedding new light on the Hubble tension. The Hubble tension, a discrepancy in the cosmic expansion rate (H0) between early [...]]]> https://scitechdaily.com/unraveling-the-universe-groundbreaking-measurement-shakes-up-physics/feed/ 5 https://scitechdaily.com/cosmological-coupling-new-evidence-points-to-black-holes-as-source-of-dark-energy/ https://scitechdaily.com/cosmological-coupling-new-evidence-points-to-black-holes-as-source-of-dark-energy/#comments Thu, 16 Feb 2023 02:37:50 +0000 https://scitechdaily.com/?p=252455

Searching through existing data spanning 9 billion years, a team of researchers led by scientists at the University of Hawaiʻi at Manoa has uncovered the first evidence of “cosmological coupling” – a newly predicted phenomenon in Einstein’s theory of gravity, possible only when black holes are placed inside an evolving universe. Astrophysicists Duncan Farrah and [...]]]> https://scitechdaily.com/cosmological-coupling-new-evidence-points-to-black-holes-as-source-of-dark-energy/feed/ 18 https://scitechdaily.com/physicists-discover-a-new-approach-for-solving-the-bizarre-dark-energy-mystery/ https://scitechdaily.com/physicists-discover-a-new-approach-for-solving-the-bizarre-dark-energy-mystery/#comments Mon, 30 Jan 2023 03:19:17 +0000 https://scitechdaily.com/?p=247028

What is behind dark energy — and what connects it to the cosmological constant introduced by Albert Einstein? Two physicists from the University of Luxembourg point the way to answering these open questions of physics. The universe has a number of bizarre properties that are difficult to understand with everyday experience. For example, the matter [...]]]> https://scitechdaily.com/physicists-discover-a-new-approach-for-solving-the-bizarre-dark-energy-mystery/feed/ 7 https://scitechdaily.com/supernova-explosions-reveal-precise-details-of-dark-energy-and-dark-matter/ https://scitechdaily.com/supernova-explosions-reveal-precise-details-of-dark-energy-and-dark-matter/#comments Sun, 23 Oct 2022 15:06:10 +0000 https://scitechdaily.com/?p=218974

An analysis of more than two decades’ worth of supernova explosions convincingly boosts modern cosmological theories and reinvigorates efforts to answer fundamental questions. A powerful new analysis has been performed by astrophysicists that places the most precise limits ever on the composition and evolution of the universe. With this analysis, dubbed Pantheon+, cosmologists find themselves [...]]]> https://scitechdaily.com/supernova-explosions-reveal-precise-details-of-dark-energy-and-dark-matter/feed/ 25 https://scitechdaily.com/nasa-scientists-probe-dark-energy-time-to-rework-albert-einsteins-theory-of-gravity/ https://scitechdaily.com/nasa-scientists-probe-dark-energy-time-to-rework-albert-einsteins-theory-of-gravity/#comments Thu, 25 Aug 2022 08:40:00 +0000 https://scitechdaily.com/?p=198338

Could one of the biggest puzzles in astrophysics be solved by reworking Albert Einstein’s theory of gravity? Not yet, according to a new study co-authored by NASA scientists. The universe is expanding at an accelerating rate, and physicists don’t know why. This phenomenon seems to contradict everything scientists understand about gravity’s effect on the cosmos: [...]]]> https://scitechdaily.com/nasa-scientists-probe-dark-energy-time-to-rework-albert-einsteins-theory-of-gravity/feed/ 9 https://scitechdaily.com/astronomy-astrophysics-101-dark-energy/ https://scitechdaily.com/astronomy-astrophysics-101-dark-energy/#comments Sat, 28 May 2022 08:15:06 +0000 https://scitechdaily.com/?p=174037

What Is Dark Energy? Dark energy is the name given to the as yet unknown energy source that is causing our Universe’s expansion to accelerate. Our Universe is expanding. One of the great mysteries of modern astronomy is that the expansion rate appears to be accelerating. The as yet unknown energy source causing this expansion [...]]]> https://scitechdaily.com/astronomy-astrophysics-101-dark-energy/feed/ 3 https://scitechdaily.com/dark-energy-vs-modified-gravity-nasa-roman-mission-will-test-competing-cosmic-acceleration-theories/ https://scitechdaily.com/dark-energy-vs-modified-gravity-nasa-roman-mission-will-test-competing-cosmic-acceleration-theories/#comments Wed, 30 Mar 2022 09:25:04 +0000 https://scitechdaily.com/?p=162575

A team of scientists has predicted the science return from one of NASA’s Nancy Grace Roman Space Telescope’s groundbreaking planned surveys, which will analyze millions of galaxies strewn across space and time. The mission’s enormous, deep panoramas will provide the best opportunity yet to discern between the leading theories about what’s speeding up the universe’s [...]]]> https://scitechdaily.com/dark-energy-vs-modified-gravity-nasa-roman-mission-will-test-competing-cosmic-acceleration-theories/feed/ 7 https://scitechdaily.com/is-dark-energy-just-an-illusion-neutron-stars-will-tell-us/ https://scitechdaily.com/is-dark-energy-just-an-illusion-neutron-stars-will-tell-us/#comments Sun, 06 Mar 2022 02:49:44 +0000 https://scitechdaily.com/?p=158280

SISSA scientists provide the first simulation of neutron star collisions in extensions of general relativity relevant for cosmology, offering a new approach to test gravity. A huge amount of mysterious dark energy is necessary to explain cosmological phenomena, such as the accelerated expansion of the Universe, with Einstein’s theory. But what if dark energy was [...]]]> https://scitechdaily.com/is-dark-energy-just-an-illusion-neutron-stars-will-tell-us/feed/ 6 https://scitechdaily.com/shadow-of-cosmic-water-cloud-reveals-secrets-of-early-universe-confirms-properties-of-dark-energy/ https://scitechdaily.com/shadow-of-cosmic-water-cloud-reveals-secrets-of-early-universe-confirms-properties-of-dark-energy/#comments Tue, 15 Feb 2022 00:12:38 +0000 https://scitechdaily.com/?p=154848

An international group of astrophysicists has discovered a new method to estimate the cosmic microwave background temperature of the young Universe only 880 million years after the Big Bang. It is the first time that the temperature of the cosmic microwave background radiation – a relic of the energy released by the Big Bang – [...]]]> https://scitechdaily.com/shadow-of-cosmic-water-cloud-reveals-secrets-of-early-universe-confirms-properties-of-dark-energy/feed/ 1