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The beginning of the universe

Image: The main image shows a close-up of a quasar and a jet, like the one actually in PJ352-52. In: X-ray data from the Chandra Space Telescope Credit: X-ray: NASA / CXO / JPL / T. Connor; Optical: Twin Observatory / NOIRLAB / NSF / AURA; Infrared: WM Observatory; Image: NASA / CXC / M. WEISS

A giant jet ejected from a black hole in the early universe

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The expansion of the universe over time. NASA/WMAP Science Team / Graphics: Dana Berry

Measuring the Universe's Expansion: Surprising Discrepancies Hint at Inconsistencies in the Universe's Composition

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Researchers at the Cosmic Dawn Center at the University of Copenhagen have found that the velocity measurements used to determine the expansion rate of the universe may not be reliable. As stated in the publication, this does not resolve the inconsistency, but rather hints at another inconsistency in the composition of the universe
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
expansion of the universe. Illustration: shutterstock

Dark energy: a map hints at what it is - but deepens the dispute over the expansion rate of the universe

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Imaging the supernova explosions of the first giant stars to form in the Milky Way. The star J0815 + 4729 formed from the material ejected by these first supernovae. Photo courtesy of Gabriel Perez, SMM (IAC).

Astronomers have detected amounts of oxygen in the atmosphere of an ancient star

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Prof. Daniel Zeifman on the background of the large cryogenic ring in Heidelberg. Substitute for a time machine

What were the structure and dynamics of the first materials in the universe?

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Prof. Lisa Randall, Harvard University. PR photo

Simulation from the smallest scale to the entire visible universe - the key to understanding the universe

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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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The oldest star discovered - 13.5 billion years old

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The early universe was liquid

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Dark energy is the name given by scientists to the phenomenon that causes acceleration in the expansion of the universe. There are three different hypotheses about the nature of dark energy: it may be a constant energy that arises from empty space itself (the hypothesis of the cosmological constant), or it may be a variable energy that originates from a fundamental field found in all of space. But it is also possible that dark energy does not exist at all and that the reason for the acceleration of the universe's expansion is that gravity behaves in a different way than our theories say when it comes to ranges on a cosmic scale. Illustration: Ævar Arnfjörð Bjarmason, Wikimedia.

The symmetron - the mysteries of dark energy

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This image shows the galaxy cluster MACS J1149.5 + 2223 taken by the NASA / ESA Hubble Space Telescope. The image in the magnifying square is the distant galaxy MACS1149-JD1, as seen 13.3 billion years ago and recently observed by Alma. The oxygen concentration discovered by 'Alma' is depicted in red. Photo: ESO

Evidence of stars formed only 250 million s after the big bang

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A diagram of the evolution and expansion of the universe, with cosmic inflation visible at its very beginning. Is the theory of cosmic inflation, which tries to explain the properties of our universe, wrong? Source: r NASA/WMAP Science Team.

Cosmic controversy

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A diagram of the evolution and expansion of the universe, with cosmic inflation visible at its very beginning. Is the theory of cosmic inflation, which tries to explain the properties of our universe, wrong? Source: r NASA/WMAP Science Team.

The theory of cosmic inflation is in trouble

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Dark matter "bridges" between galaxies. Photo: University of Waterloo

First visualization of the dark matter network that connects galaxies

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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 image shows the most distant galaxy ever discovered by the Hubble Space Telescope's Deep Space Survey System. The field of view of the survey includes tens of thousands of galaxies throughout all time. The distant galaxy GN-z11 appears to us as it was 400 million years after the Big Bang, 3% of its current age. Credit: NASA, ESA, and P. Oesch (Yale University)

The record for the most distant galaxy has been broken again

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University of British Columbia researchers propose a new method to calculate distances in the universe using mysterious bursts of energy. Illustration: Credit: Kris Sigurdson

Has a new method for measuring distances in the universe independent of redshift been discovered?

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The galaxy EGS8p7 as seen from the Hubble Space Telescope (the large image and the image on the upper right, and by the Spitzer Space Telescope) lower right in infrared. I. Labbe, (Leiden University), NASA/ESA/JPL-Caltech

The most distant and therefore also the oldest galaxy so far has been discovered

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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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Three Methuselah stars have been discovered that formed in the universe shortly after the Big Bang

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In this photograph from the Hubble Space Telescope, you see dark knots of gas and dust called "Bok globules" - compressed pockets in larger molecular clouds. Such islands of matter in the early universe may have contained water vapor as we see in our galaxy today, although they contained much less oxygen. Photo: Credit: NASA, ESA, and The Hubble Heritage Team

Surprising discovery: the ancient gas clouds, from which the stars and galaxies in the universe were formed, contained a significant amount of water

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The Milky Way as photographed from 5,000 meters above sea level on the Chimborazo volcano in Ecuador. Photo: shutterstock - one new sun a year

Why galaxies in the early universe died young

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Comet Siding Spring as it might have been seen from Mars. Figure: Indian Space Agency

Summary of the year 2014 Part II - Astronomy and astrophysics: a rare meeting between Mars and the comet 'Ben David' of the Earth and a supercluster

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