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Astronomy Jul 20, 2023

New computer simulations follow the formation of galaxies and cosmic large-scale structure with precision

York University and an international team of astrophysicists have made an ambitious attempt to simulate the formation of galaxies and cosmic large-scale structure throughout staggeringly large swaths of space.

Astronomy Jul 19, 2023

The puzzle of the galaxy with no dark matter

A team of scientists, led by the researcher at the IAC and the University of La Laguna (ULL) Sebastién Comerón, has found that the galaxy NGC 1277 does not contain dark matter. This is the first time that a massive galaxy ...

Astronomy Jul 13, 2023

Dynamical dark energy might explain strange 21-cm signal

Dark energy may evolve in time, and it may even connect through a new force of nature with dark matter. A researcher believes that we may have already seen evidence for this. Their findings have been reported on the preprint ...

Astronomy Jul 13, 2023

New research puts age of universe at 26.7 billion years, nearly twice as old as previously believed

Our universe could be twice as old as current estimates, according to a new study that challenges the dominant cosmological model and sheds new light on the so-called "impossible early galaxy problem."

Astronomy Jul 7, 2023

After the launch of Euclid: 'This is a big step toward understanding dark matter and dark energy'

What is it like to work on the fundamental questions about the universe? On July 1, the Euclid satellite launched successfully. This mission from the European Space Agency will take images of the sky to create the most detailed ...

Astronomy Jul 6, 2023

Researchers use supercomputer to investigate dark matter

A research team from the University of California, Santa Cruz, have used the Oak Ridge Leadership Computing Facility's Summit supercomputer to run one of the most complete cosmological models yet to probe the properties of ...

Astronomy Jul 3, 2023

Quasar 'clocks' show the universe was five times slower soon after the Big Bang

Scientists have for the first time observed the early universe running in extreme slow motion, unlocking one of the mysteries of Einstein's expanding universe. The research is published in Nature Astronomy.

Astronomy Jun 29, 2023

Cosmological models are built on a simple, century-old idea, but new observations demand a radical rethink

Our ideas about the universe are based on a century-old simplification known as the cosmological principle. It suggests that when averaged on large scales, the Cosmos is homogeneous and matter is distributed evenly throughout.

Astronomy Jun 29, 2023

Euclid space telescope to shed light on the darkness

On 1 July, the Euclid space telescope will start its journey into outer space on an important mission—to seek further clues about the origin of the universe. UZH researchers are involved in the scientific preparation and ...

General Physics Jun 22, 2023

Could quantum gravity models arising from holography explain cosmological acceleration?

Theoretical physicists have long been trying to devise a complete theory of gravity that would also account for quantum mechanics phenomena, as existing models do not. Such a theory could collectively explain the many intricate ...

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