A team of researchers has analyzed more than 1 million galaxies to explore the origin of the present-day cosmic structures, as reported in a recent study published in Physical Review D as an Editors' Suggestion.
Astronomy
Dec 22, 2023
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One of the biggest mysteries in cosmology is the rate at which the universe is expanding. This can be predicted using the standard model of cosmology, also known as Lambda-cold dark matter (ΛCDM). This model is based on ...
Astronomy
Dec 1, 2023
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2869
If you, like me, have used telescopes to gaze out at the wonders of the universe, then you too may have been a little captivated by the topic of gravitational lensing. Think about it: how cool is it that the very universe ...
Astronomy
Nov 1, 2023
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27
On July 11, 2022, the very first image taken by the James Webb Space Telescope (JWST) was released to the general public. It's called Webb's First Deep Field, centered on a cluster of galaxies named SMACS 0723 and containing ...
Astronomy
Nov 1, 2023
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137
Astronomers have discovered the most distant "relaxed" galaxy cluster to date—the farthest cluster ever spotted that is not being disrupted by violent collisions with other clusters of galaxies. This finding is paving the ...
Astronomy
Jul 20, 2023
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50
Our ideas about the universe are based on a century-old simplification known as the cosmological principle. It suggests that when averaged on large scales, the Cosmos is homogeneous and matter is distributed evenly throughout.
Astronomy
Jun 29, 2023
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59
Isaac Newton formulated his theory of gravity as an action at a distance: a planet instantly feels the influence of another celestial body, no matter the distance between them. This characteristic motivated Albert Einstein ...
Astronomy
Jun 27, 2023
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Astronomers have begun using a sophisticated suite of simulations, an advanced machine learning model of the formation of galaxy clusters, and an exotic relationship between galaxies to understand the origins of dark matter ...
Astronomy
Jan 18, 2023
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34
Using the James Webb Space Telescope to look back in time at the early universe, astronomers discovered a surprise: a cluster of galaxies merging together around a rare red quasar within a massive black hole. The findings ...
Astronomy
Oct 20, 2022
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107
Gravitational lensing provides an opportunity to see supernovae and other transients much farther than we normally can. A new research proposal outlines a plan to use a comprehensive catalog of strong gravitational lenses ...
Astronomy
May 10, 2022
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