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the dark matter

The cosmic microwave background - the oldest light in the universe - traveled vast distances before reaching us. During its long journey, gravitational forces from massive cosmic structures caused its orbit to bend before it was captured by the South Pole Telescope. Credit: Zhaodi Pan/Argonne National Laboratory

The Antarctic telescope offers a map of the distribution of dark matter in the universe

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Argon is part of a multi-institutional effort to survey the skies for clues about the origins and nature of our universe.
the dark matter. Illustration: depositphotos.com

Following the dark matter

on the research effort to decipher the essence and properties of dark matter, by measuring interactions between it and other matter particles
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
The distribution of dark matter in a segment of the southern sky. Based on data from the ACT observatory in Chile that operated between 2007-2022. Courtesy of Princeton University and the University of Pennsylvania

A new map of dark matter verifies Einstein's theory of general relativity

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A groundbreaking new map of dark matter has been created using data from the Dark Energy Survey (DES), in an international collaboration of astronomers and physicists. The map shows the distribution of dark matter in the southern sky region, and is the most accurate and detailed map of its kind ever created
The concept of the early universe. Illustration: depositphotos.com

Cosmic Breakthrough: A new and accurate map of all matter in the universe has been published

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A team of scientists made a drastic announcement about one of the most accurate measurements to date of the distribution of matter in the universe using, among other things, the radio telescope at the South Pole
A two-dimensional projection of the cosmic web as obtained from a supercomputer simulation. Credit: Dr. Ewald Puchwein and the Sherwood-Relics collaboration

New research suggests that dark matter may be made of dark photons

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The new hypothetical particles may be able to explain the observations made by the Cosmic Source Spectrograph on the Hubble Space Telescope
It is a complex picture of X-rays, molecular gas and hot ionized gas near the center of the galaxy. The orange shapes are glowing hydrogen gas. One of these shapes, at the upper end of the jet (see an illuminated image below) is interpreted as a hydrogen cloud that was hit by the jet and moved outward. The jet disperses the cloud into tendrils that move towards the north. Further down near the black hole are X-ray observations of highly heated gas in blue and molecular gas in green. These data are evidence that the black hole is occasionally accreted by stars or gas clouds, and is ejecting some of the very hot material along its axis of rotation. Credit: NASA, ESA, and Gerald Cecil (UNC-Chapel Hill); Image Processing: Joseph DePasquale (STScI)

The Milky Way's supermassive black hole is still humming long after a burst of powerful 'death rays'

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The Hubble Space Telescope photographed a bright knot of gas hit by an invisible jet from the black hole, which is only 15 light years away. The black hole must have looked bright billions of years ago as a quasar, when our young galaxy was fed by lots of infalling gas. But after all this time the black hole is acting sporadically, unwilling to take a nap
the bullet cluster. An area with a high concentration of dark matter. From NASA's Image of the Day, 2015. Image Credit: X-ray: NASA/CXC/CfA/ M. Markevitch et al.; Lensing Map: NASA/STScI; ESO WFI; Magellan/U.Arizona/ D.Clowe et al. Optical: NASA/STScI; Magellan/U.Arizona/D.Clowe et al.

A new model for dark matter opens new avenues for its search

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A new model published by researchers from Melbourne and CERN raises the possibility that dark matter is heavier than we thought until now. The researchers hope that the paper they published will encourage experimenters to look for new avenues for detecting dark matter
The heart of the detector in the "Xenon 1 Ton" experiment. The world's most sensitive to dark matter

The scientists of the "Xenon 1 ton" experiment identified a larger than expected amount of events that may indicate the existence of new physics

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An image of about ten thousand galaxies is called: "Hubble's vast deep field". The image includes galaxies of a variety of ages, sizes, shapes and colors. About 800 of the small red galaxies may be the most distant galaxies to be seen. They were created when the universe was 13 million years old. The nearest galaxies - the luminosities with a distinct spiral or ellipse shape - are about a billion light-years away, when the universe was 800 billion years old. The image required 400 exposures taken during Hubble's 11.3 orbits around the Earth. The total exposure time was 24 days, between September 2003, 16 and January 2004, XNUMX. Photo: NASA, ESA, and S. Beckwith (STScI) and the HUDF Team

Measure the heat of the dark matter

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Maps of filaments of matter filling the universe. The gas wires are shown in blue. The background maps are an optical image taken by the Subaru Telescope (left) and a millimeter wavelength image taken by the ALMA observatory (right). Existence of extensive gaseous structures and cosmic web wires discovered (left); and that the filaments connect several galaxies where there is a high rate of star formation (right). Credit: RIKEN

Massive filaments of matter filling the universe are responsible for the growth of galaxies and the supermassive black holes at their centers

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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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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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1. Giorgio Pelucci, Scientific Director of the SESAME Regional Particle Accelerator inaugurated in Jordan. Photo: Ruth Lower, Technion spokeswoman.

Dinosaurs, black holes and the regional particle accelerator - at an international conference at the Technion

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A simulation of the Milky Way galaxy. The blue halo around it comes to illustrate the estimated distribution of the dark matter around the galaxy. Source: ESO/L. Calçada.

Probing in the dark for dark matter

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Light multiplier tubes, PMT, in the XENON1T experiment will record any flash of light that will be produced when a dark matter particle hits a xenon atom. From the accelerator website.

Last call to dark matter

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Colliding galaxies in the cluster Obel 3827. Courtesy of the European Southern Observatory (ESO), NASA and the European Space Agency/Hubble Space Telescope

Dark matter throws a clue / Clara Moskowitz

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The Milky Way. Illustration: shutterstock

Raise the screen over a galaxy composed of dark matter

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dark matter. Illustration: shutterstock

Researchers propose a new method for detecting dark matter

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Prof. Yoram Rosen

The dark matter - probes in Alta

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Lux is the most sensitive sensor in the world for "dark matter particles". Photo: SANFORD laboratories

Lux - detector for locating the elusive dark matter will operate for 300 days in 2014

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What is the force driving the galaxies?

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Dark matter", the great present-absent of the universe, disturbs the rest of the astronomers.

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