#Astronomy #Cosmology #MilkyWay
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200,000 ancient Milky Way stars reveal the Universe may be 13.6 billion years old
By focusing on the ages of the oldest stars in the Milky Way, researchers utilized precise stellar data to provide a robust lower limit on the age of the Universe, highlighting the potential for future data releases from the Gaia mission to further refine measurements.
#GravitationalWaves #HubbleConstant #Cosmology
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How fast is the universe actually expanding? Ripples in spacetime could finally solve 'Hubble tension'
By analyzing the gravitational wave background from distant black hole collisions, researchers hope to develop a method that can independently measure the Hubble constant and potentially end the longstanding Hubble tension.
#DarkEnergy #Cosmology #UniverseExpansion
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'The dream has come true': Standard model of cosmology holds up in massive 6-year study of the universe -- with one big caveat
The data from the Dark Energy Survey align with the standard model of cosmology, but questions remain about the pattern of galaxy clustering and the nature of dark energy, prompting further research with the Vera C.
#DarkEnergy #Cosmology #UniverseExpansion
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Scientists just got the clearest picture of the dark universe yet: 'Now the dream has come true'
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#DarkMatter #JamesWebbSpaceTelescope #Cosmology
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Astronomers unveil map of dark matter's distribution in universe
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WASHINGTON, Jan 26 (Reuters) - Using observations from the James Webb Space Telescope in a patch of the sky covering almost three times the area of the full moon, scientists have created the most detailed cosmic map to date of the mysterious substance called dark matter that accounts for most of the stuff that populates the universe.
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#DarkMatter #Neutrinos #Cosmology
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'It would be a fundamental breakthrough': Mysterious dark matter may interact with cosmic 'ghost particles'
An illustration showing a halo of dark matter around a spiral galaxy (Image credit: Robert Lea (created with Canva))
New research puts forward compelling new evidence that dark matter interacts with cosmic "ghost particles" called neutrinos.
