Tag #Dark Energy

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mk.ru

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Jul 12, 13:12

New Model Predicts Universe's Collapse in 33 Billion Years

A new study suggests the universe will collapse in 33 billion years due to weakening dark energy, a finding supported by data from the Dark Energy Survey and Dark Energy Spectroscopic Instrument and contradicting previous theories of indefinite expansion.

New Model Predicts Universe's Collapse in 33 Billion Years

A new study suggests the universe will collapse in 33 billion years due to weakening dark energy, a finding supported by data from the Dark Energy Survey and Dark Energy Spectroscopic Instrument and contradicting previous theories of indefinite expansion.

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How does this new model differ from previous understandings of dark energy, and what data sources support its conclusions?

The model challenges the idea of dark energy as a cosmological constant, proposing instead a negative cosmological constant of approximately -1.61. This negative value implies that dark energy's repulsive force will weaken over time, eventually allowing gravity to dominate, causing the universe's collapse. The research utilized the axion Dark Energy (aDE) model, incorporating an axion field.

elpais.com

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Jun 23, 16:15

Rubin Observatory Releases First Images, Unveiling Unprecedented Cosmic Detail

The Vera C. Rubin Observatory in Chile released its first full-color images, revealing unprecedented detail in a time-lapse view of the cosmos, including nebulae, galaxy clusters, and millions of galaxies, marking the start of its 10-year survey to study dark matter and energy.

Rubin Observatory Releases First Images, Unveiling Unprecedented Cosmic Detail

The Vera C. Rubin Observatory in Chile released its first full-color images, revealing unprecedented detail in a time-lapse view of the cosmos, including nebulae, galaxy clusters, and millions of galaxies, marking the start of its 10-year survey to study dark matter and energy.

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What immediate scientific advancements are expected from the Vera C. Rubin Observatory's initial data release?

The Vera C. Rubin Observatory in Chile has released its first full-color images, showcasing the most detailed time-lapse view of the cosmos ever created. These images, from a telescope with a 3,200-megapixel camera, reveal previously unknown celestial objects such as asteroids, comets, and supernovas.

us.cnn.com

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Apr 5, 22:14

Ancient DNA Reveals Sahara's Green Past and its Inhabitants

Analysis of ancient DNA from 7,000-year-old mummified remains in Libya's Takarkori rock shelter reveals the ancestry and herding lifestyle of people who inhabited the then-verdant Sahara, providing insights into human adaptation to environmental changes and migration patterns.

Ancient DNA Reveals Sahara's Green Past and its Inhabitants

Analysis of ancient DNA from 7,000-year-old mummified remains in Libya's Takarkori rock shelter reveals the ancestry and herding lifestyle of people who inhabited the then-verdant Sahara, providing insights into human adaptation to environmental changes and migration patterns.

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How does the discovery of ancient DNA from the green Sahara contribute to our understanding of human adaptation to environmental changes?

The findings connect the genetic history of the Takarkori people to broader patterns of human migration and adaptation to changing environments. The shift to herding likely reflects a response to the desertification of the Sahara, highlighting the impact of climate change on human societies. Ancient DNA analysis helps unravel complex past population movements and cultural changes.

bbc.com

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Mar 20, 01:12

Dark Energy Experiment Challenges Einstein's Theory

The Dark Energy Spectroscopic Instrument (DESI) experiment suggests that dark energy, the force accelerating the universe's expansion, is changing over time, challenging Einstein's theory and potentially leading to a paradigm shift in cosmology.

Dark Energy Experiment Challenges Einstein's Theory

The Dark Energy Spectroscopic Instrument (DESI) experiment suggests that dark energy, the force accelerating the universe's expansion, is changing over time, challenging Einstein's theory and potentially leading to a paradigm shift in cosmology.

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What are the potential underlying mechanisms driving the observed variation in dark energy, and how do these connect to our current theories of physics?

DESI's findings challenge the prevailing cosmological model by indicating a time-dependent dark energy. This contrasts with the previously held assumption of a constant dark energy driving accelerated expansion. The implications are significant, potentially requiring revisions to our fundamental understanding of gravity and the universe's evolution.

abcnews.go.com

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Mar 20, 04:13

Dark Energy May Be Weakening, Challenging Universe's Fate

An international collaboration using the Dark Energy Spectroscopic Instrument (DESI) has found evidence suggesting dark energy, a force making up nearly 70% of the universe and accelerating its expansion, may be weakening, potentially leading to the universe's eventual collapse instead of continuous...

Dark Energy May Be Weakening, Challenging Universe's Fate

An international collaboration using the Dark Energy Spectroscopic Instrument (DESI) has found evidence suggesting dark energy, a force making up nearly 70% of the universe and accelerating its expansion, may be weakening, potentially leading to the universe's eventual collapse instead of continuous...

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What is the significance of the findings from the Dark Energy Spectroscopic Instrument regarding the nature of dark energy and its implications for the universe's future?

Scientists are exploring whether dark energy, comprising nearly 70% of the universe and accelerating its expansion, is a constant force or weakening. New data from the Dark Energy Spectroscopic Instrument (DESI) analyzing 15 million galaxies and quasars bolsters the hypothesis of weakening dark energy, though more evidence is needed for definitive proof. This challenges existing cosmological models.

cbsnews.com

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Mar 20, 13:16

DESI Data Suggests Weakening Dark Energy, Potentially Leading to 'Big Crunch'

The Dark Energy Spectroscopic Instrument (DESI) analysis of nearly 15 million galaxies and quasars suggests dark energy is weakening, potentially leading to the universe's eventual collapse, a departure from the long-held theory of constant dark energy.

DESI Data Suggests Weakening Dark Energy, Potentially Leading to 'Big Crunch'

The Dark Energy Spectroscopic Instrument (DESI) analysis of nearly 15 million galaxies and quasars suggests dark energy is weakening, potentially leading to the universe's eventual collapse, a departure from the long-held theory of constant dark energy.

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What are the implications of the DESI collaboration's findings on the nature of dark energy and the future of the universe?

Analysis of 15 million galaxies and quasars by the Dark Energy Spectroscopic Instrument (DESI) suggests dark energy may be weakening, potentially leading to the universe's eventual collapse in a 'Big Crunch'. This contradicts the long-held theory of constant dark energy, prompting a reassessment of cosmological models.

theguardian.com

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Jun 23, 22:15

Rubin Observatory Begins 10-Year Cosmic Survey, Unveiling Thousands of New Asteroids

The $810m Vera C. Rubin Observatory in Chile has begun a 10-year survey of the cosmos, already discovering 2,104 previously unknown asteroids and producing stunning images of galaxies, offering a revolutionary view of the universe.

Rubin Observatory Begins 10-Year Cosmic Survey, Unveiling Thousands of New Asteroids

The $810m Vera C. Rubin Observatory in Chile has begun a 10-year survey of the cosmos, already discovering 2,104 previously unknown asteroids and producing stunning images of galaxies, offering a revolutionary view of the universe.

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What immediate impact will the Vera C. Rubin Observatory have on our understanding of near-Earth asteroids and the broader universe?

The Vera C. Rubin Observatory in Chile has begun its 10-year survey, already detecting 2,104 previously unknown asteroids, including seven near-Earth asteroids deemed non-threatening. Its 3,200-megapixel camera will create the largest astronomical movie ever, capturing the entire southern sky every few days.

dw.com

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Jun 23, 22:15

Vera Rubin Observatory Releases First Images, Unveiling Unprecedented Cosmic Details

The Vera Rubin Observatory in Chile released its first images, showcasing unprecedented detail of nebulae, galaxies, and 2104 previously unknown asteroids (including seven near-Earth objects) detected in just 10 hours, using the largest digital camera ever built; its decade-long Legacy Survey of Spa...

Vera Rubin Observatory Releases First Images, Unveiling Unprecedented Cosmic Details

The Vera Rubin Observatory in Chile released its first images, showcasing unprecedented detail of nebulae, galaxies, and 2104 previously unknown asteroids (including seven near-Earth objects) detected in just 10 hours, using the largest digital camera ever built; its decade-long Legacy Survey of Spa...

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What are the immediate scientific implications of the Vera Rubin Observatory's first images and its planned Legacy Survey of Space and Time?

The Vera Rubin Observatory in Chile has released its first images, showcasing unprecedented detail of star-forming regions and distant galaxies. These images, taken with the largest digital camera ever built, reveal features previously unseen in nebulae and galaxies like the Trifid and Laguna Nebulae and the Virgo galaxy cluster. This powerful new telescope, operational after over two decades of work, will significantly advance our understanding of the cosmos.

us.cnn.com

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Apr 2, 19:13

DESI Data Suggests Dark Energy May Be Weakening

New data from the Dark Energy Spectroscopic Instrument (DESI) survey of nearly 15 million galaxies and quasars suggests dark energy, a force accelerating the universe's expansion, may be weakening, challenging established cosmological models.

DESI Data Suggests Dark Energy May Be Weakening

New data from the Dark Energy Spectroscopic Instrument (DESI) survey of nearly 15 million galaxies and quasars suggests dark energy, a force accelerating the universe's expansion, may be weakening, challenging established cosmological models.

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How do the DESI findings, combined with other cosmological observations, support the hypothesis of evolving dark energy?

DESI's findings, based on observations of light from galaxies over 11 billion years, show dark energy's influence on cosmic expansion may be diminishing. This conclusion is supported by comparing DESI data with other measurements like exploding stars and the cosmic microwave background.

spanish.china.org.cn

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Mar 20, 07:13

DESI Detects Potential Variation in Dark Energy, Challenging Standard Cosmological Model

The Dark Energy Spectroscopic Instrument (DESI) has found evidence suggesting dark energy, a force driving the universe's accelerating expansion, may not be a constant, challenging the Lambda-CDM model and potentially requiring modifications to existing theories of cosmology.

DESI Detects Potential Variation in Dark Energy, Challenging Standard Cosmological Model

The Dark Energy Spectroscopic Instrument (DESI) has found evidence suggesting dark energy, a force driving the universe's accelerating expansion, may not be a constant, challenging the Lambda-CDM model and potentially requiring modifications to existing theories of cosmology.

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How do DESI's observations challenge the Lambda-CDM model, and what alternative theories are being considered?

DESI's findings, based on three years of observations, indicate that the acceleration of the universe's expansion was greater approximately seven billion years ago and has slowed in the last 2.5 billion years. This challenges the standard cosmological model which assumes a constant dark energy, potentially requiring modifications or alternative theories.

dailymail.co.uk

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Mar 20, 19:17

Dark Energy Weakening: Could the Universe End in a 'Big Crunch'?

A new study using data from the Dark Energy Spectroscopic Instrument (DESI) suggests that dark energy, the force preventing the universe from collapsing, may be weakening, potentially leading to a 'Big Crunch' where the universe collapses in on itself.

Dark Energy Weakening: Could the Universe End in a 'Big Crunch'?

A new study using data from the Dark Energy Spectroscopic Instrument (DESI) suggests that dark energy, the force preventing the universe from collapsing, may be weakening, potentially leading to a 'Big Crunch' where the universe collapses in on itself.

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What is the most significant finding of the new study regarding dark energy, and what immediate implications does it have for our understanding of the universe's expansion?

A new study suggests dark energy, the force counteracting gravity's pull, may be weakening. This challenges the standard cosmological model, which assumes constant dark energy and perpetual universe expansion. If confirmed, this finding drastically alters our understanding of the cosmos.

dw.com

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Mar 20, 07:13

Euclid Telescope Releases First Data, Unveiling 26 Million Galaxies

The European Space Agency released the first data from its Euclid space telescope on March 19, 2024, revealing observations of 26 million galaxies, some 10.5 billion light-years away, to better understand dark energy and dark matter which are believed to make up 95% of the universe.

Euclid Telescope Releases First Data, Unveiling 26 Million Galaxies

The European Space Agency released the first data from its Euclid space telescope on March 19, 2024, revealing observations of 26 million galaxies, some 10.5 billion light-years away, to better understand dark energy and dark matter which are believed to make up 95% of the universe.

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What immediate impact does the first data release from the Euclid space telescope have on our understanding of the universe?

The European Space Agency (ESA) released the first data from the Euclid space telescope's mission on March 19, 2024. This initial dataset, representing just 0.5% of the total expected data, includes observations of 26 million galaxies, some up to 10.5 billion light-years away. The telescope, launched in 2023, aims to map one-third of the sky over its six-year mission, furthering our understanding of dark energy and dark matter.

Showing 1 to 12 of 22 results