See also stories tagged with Cosmology

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Astronomy Jan 3, 2025

Scientists detect mysterious suppression in cosmic structure growth

A new study in published in Physical Review Letters analyzes the most complete set of galaxy clustering data to test the ΛCDM model, revealing discrepancies in the formation of cosmic structures in the universe, hinting at ...

Astronomy Dec 20, 2024

Dark energy 'doesn't exist' so can't be pushing 'lumpy' universe apart, physicists say

One of the biggest mysteries in science—dark energy—doesn't actually exist, according to researchers looking to solve the riddle of how the universe is expanding.

Astronomy Dec 9, 2024

Webb telescope's largest study of universe expansion confirms challenge to cosmic theory

New observations from the James Webb Space Telescope suggest that a new feature in the universe—not a flaw in telescope measurements—may be behind the decade-long mystery of why the universe is expanding faster today than ...

Astronomy Dec 9, 2024

'We live in a universe that is just right for us': Study proposes a test for the Anthropic Principle

The Anthropic Principle—stating that the universe we live in is fine-tuned to host life—was first proposed by Brandon Carter in 1973. Since then, it has sparked significant debate.

Astronomy Dec 1, 2024

New approach uses observed local supervoid to give expansion of the universe an extra push and solve the Hubble tension

Astronomers have known for a century that the universe is expanding. We can now trace this expansion over much of its almost 14 billion year history, with important constraints going back to just one second after the Big ...

Astronomy Nov 30, 2024

Cosmological model proposes dark matter production during pre-Big Bang inflation

As physicists continue their struggle to find and explain the origin of dark matter, the approximately 80% of the matter in the universe that we can't see and so far haven't been able to detect, researchers have now proposed ...

Astronomy Nov 25, 2024

Einstein predicted how gravity should work at the largest scales. And he was right, suggests new research

When Albert Einstein introduced his theory of general relativity in 1915, it changed the way we viewed the universe. His gravitational model showed how Newtonian gravity, which had dominated astronomy and physics for more ...

Astronomy Nov 25, 2024

Record-breaking run on Frontier sets new bar for simulating the universe in exascale era

The universe just got a whole lot bigger—or at least in the world of computer simulations, that is. In early November, researchers at the Department of Energy's Argonne National Laboratory used the fastest supercomputer on ...

Astrobiology Nov 20, 2024

Many physicists argue the universe is fine-tuned for life. Our findings question this idea

Physicists have long grappled with the question of why the universe was able to support the evolution of intelligent life. The values of the many forces and particles, represented by some 30 so-called fundamental constants, ...

Astronomy Nov 14, 2024

Latest findings from the South Pole Telescope bolster standard cosmological model

Roughly 400,000 years after the Big Bang, the universe cooled just enough to allow photons to escape from the primordial cosmological soup. Over the next 14 billion years, these ancient photons—the universe's first light—continued ...

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