(PhysOrg.com) -- An alternative proposal to dark energy in which the Earth sits near the center of a large void is undergoing scrutiny, and the results show that void models fit poorly with observed data. Nevertheless, scientists ...
The first generation of stars transformed the universe. Inside their cores, simple hydrogen and helium fused into a rainbow of elements. When these stars died, they exploded and sent these new elements across the universe. ...
Astronomy
Mar 20, 2024
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The current theoretical model for the composition of the universe is that it's made of normal matter, dark energy and dark matter. A new University of Ottawa study challenges this.
Astronomy
Mar 15, 2024
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Astronomers have long sought to understand the early universe, and thanks to the James Webb Space Telescope (JWST), a critical piece of the puzzle has emerged. The telescope's infrared detecting "eyes" have spotted an array ...
Astronomy
Feb 6, 2024
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In a new study, scientists report results from the PandaX-4T experiment, setting stringent limits on dark matter–nucleon interactions using low-energy data and the Migdal effect, ruling out significant parameter space for ...
Using the James Webb Space Telescope, an international team, including astronomer Alexander de la Vega of the University of California, Riverside, has discovered the most distant barred spiral galaxy similar to the Milky ...
Astronomy
Nov 9, 2023
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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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For the first time, the James Webb Space Telescope has observed the chemical signature of carbon-rich dust grains in the early universe.
Astronomy
Jul 19, 2023
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Our universe could be twice as old as current estimates, according to a new study that challenges the dominant cosmological model and sheds new light on the so-called "impossible early galaxy problem."
Astronomy
Jul 13, 2023
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Researchers have discovered the most distant active supermassive black hole to date with the James Webb Space Telescope (JWST). The galaxy, CEERS 1019, existed about 570 million years after the big bang, and its black hole ...
Astronomy
Jul 6, 2023
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