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The mourning constant

NGC 5468 — the host galaxy of Cepheid. Joint photograph of the Webb and Hubble Space Telescopes, NASA/ESA

The Webb and Hubble telescopes confirm the rate of expansion of the universe, the puzzle remains

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Webb's measurements provide new light on a decade-long mystery known as the Hubble voltage - the differences in the age of the universe between the Hubble observations and past observations that remain unexplained * Prof. Adam Ries, winner of the Nobel Prize in Physics for the discovery of dark energy heads the project
Galaxies that are pulled into a giant galaxy cluster. When entering the group, these galaxies show a blue shift compared to the central galaxy. Credit: Dr. Shihong Liu

"Challenges of the age of the universe: Galactic dance reveals that the universe may be younger than thought

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Motions of satellite galaxies around groups and clusters of giant galaxies could provide valuable insights into their evolution. The observations of such motion provide crucial clues about the age of the universe
Conceptual diagram of this study. Signals from supernovae (close-up lower right), quasars (close-up middle left), and gamma-ray bursts (close-up top center) reach Earth in the Milky Way galaxy (background), where we can use them to measure cosmological parameters. Credit: NAOJ

Rewriting the past and future of the universe - new research sheds light on the fate of our cosmos

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New research has improved the accuracy of the parameters that control the expansion of the universe. More precise parameters will help astronomers determine how the universe grew to its current state, and how it will evolve in the future.
A spectacular view of the universe as seen in a Hubble Space Telescope image from 2014. NASA, ESA, H. Teplitz and M. Rafelski (IPAC/Caltech), A. Koekemoer (STScI), R. Windhorst (Arizona State University), and Z. Levay (STScI)

The rate of expansion of the universe is controversial - and we may need new physics to quantify it

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The quasar HE0435-1223 in the center of the wide-field image is among the five best purified quasars discovered so far. The intervening galaxy creates four uniform images of the distant quasar around the true quasar. Credit: ESA/Hubble, NASA, Suyu et al.

New research reveals that the early universe expanded much faster than today

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The discovery image (changing stars in a nearby galaxy)

Is the universe expanding faster than we thought?

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The universe does not expand uniformly

  • 75 תגובות
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