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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27484
One of the most remarkable successes of astrophysics in the last century was its discovery that the age of the universe as measured by its oldest stars was about the same as the age estimated in an entirely different way, ...
Astronomy
Sep 12, 2016
39
862
The outskirts of the Milky Way are home to the galaxy's oldest stars. But astronomers have spotted something unexpected in this celestial retirement community: a flock of young stars.
Astronomy
Jan 8, 2020
8
5105
Theories on how the Milky Way formed are set to be rewritten following discoveries about the behavior of some of its oldest stars.
Astronomy
Nov 16, 2020
11
3518
Determining how rapidly the universe is expanding is key to understanding our cosmic fate, but with more precise data has come a conundrum: Estimates based on measurements within our local universe don't agree with extrapolations ...
Astronomy
Mar 8, 2021
9
481
Astronomers have discovered more than 200 distant variable stars known as RR Lyrae stars in the Milky Way's stellar halo. The most distant of these stars is more than a million light years from Earth, almost half the distance ...
Astronomy
Jan 9, 2023
3
710
A team of Canadian astronomers, including experts from the Dunlap Institute for Astronomy & Astrophysics in the University of Toronto's Faculty of Arts & Science, have used the James Webb Telescope (JWST) to identify the ...
Astronomy
Nov 2, 2022
0
195
Using the James Webb Space Telescope (JWST), researchers from the CAnadian NIRISS Unbiased Cluster Survey (CANUCS) team have identified the most distant globular clusters ever discovered. These dense groups of millions of ...
Astronomy
Sep 29, 2022
1
298
An international team of researchers has obtained the largest set of detailed observations yet of the oldest stars in the center of our Galaxy, the Milky Way. The Pristine Inner Galaxy Survey (PIGS) team finds that this group ...
Astronomy
Jul 4, 2023
0
809
Just how quickly is the dark matter near Earth zipping around? The speed of dark matter has far-reaching consequences for modern astrophysical research, but this fundamental property has eluded researchers for years.
Astronomy
Jan 24, 2018
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