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This image is from Gaia's third data release in 2022. The image above is from the new data release, and shows exactly how many new sources have been imaged at the center of the cluster. Only faint stars within Omega Centauri are marked in both images.

Gaia's Galactic Gold Mine: Star Clusters, Cosmic Lenses, Asteroids, and Unexpected Science

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The European Space Agency's Gaia mission discovered over half a million new stars, tagged 150,000 asteroids, and identified 380 cosmic lenses. These discoveries advance our understanding of the universe, setting the stage for the expected release of Gaia DR4 data in 2025
An artist's impression of star formation in the early universe, a few hundred million years after the Big Bang. (Image credit: (Adolf Schaller/Space Telescope Science Institute, NASA)

It is possible that the universe will start contracting "really" soon

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In a new paper published in PNAS, three scientists attempt to model the nature of dark energy, a mysterious entity that appears to be causing the universe to expand faster and faster, consistent with previous observations of the universe's expansion.
The concept of time in quantum physics. Photo: depositphotos.com

About a hundred years of quantum field theory - about the theory that changed the world

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The XNUMXs were the years when quantum theory entered the mainstream of physics and brought science and technology to new heights
In this map, built on the basis of the observations of the Planck spacecraft launched by the European Space Agency, you can see the cosmic microwave background radiation (CMB), the earliest observable light of the universe, and it gives us the best picture ever of the universe in its early childhood. The blue areas in the sky represent points where the temperature of the background radiation, and in any case also of the early universe, is lower, and the red areas reflect warmer places. Proponents of the inflationary theory, which holds that the universe expanded rapidly in its early moments, argue that the pattern of hot and cold spots is consistent with this idea. However, the theory can actually produce any pattern, and in most of its versions it produces larger temperature differences than this map shows. Moreover, if inflation did occur, the background radiation should include evidence for cosmic gravitational waves, ripples in spacetime caused by the primordial stretch, but it does not. Instead, the Planck data reveal that the true story of our universe's history is still far from over. Source: ESA and the Planck Collaboration.

Nobel laureate Prof. Peebles revealed the secrets behind cosmic radiation

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The entire universe is located on the edge of this expanding bubble. Credit: Suvendu Giri, Uppsala University

A new theory: the universe rides on top of an expanding bubble from another dimension

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Scientists from the SLAC accelerator and Stanford University combined experimental data and theory to understand how the universe formed and what the future holds. Stringy clumps of dark matter (black regions) serve as scaffolds for the construction of cosmic structures made of normal matter (bright regions), which include stars, galaxies, and galaxy clusters. Figure: S Skillman, YY. Mao, KIPAC/SLAC National Accelerator Laboratory

What does the future hold for the universe? Learning about the future from the distant past

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