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General Physics Feb 26, 2024

Unlocking the secrets of the universe: New discoveries in gravitational waves

A groundbreaking body of work led by Monash University physicists has opened a new pathway for understanding the universe's fundamental physics.

Astronomy Feb 22, 2024

New measurement of cosmic distances in the dark energy survey gives clues about the nature of dark energy

We now have a standard model of cosmology, the current version of the Big Bang theory. Although it has proved very successful, its consequences are staggering. We know only 5% of the content of the universe, which is normal ...

Astronomy Feb 14, 2024

eROSITA X-ray sky survey measurements show consistency with the cosmic microwave background

The analysis of how galaxy clusters, the largest objects in the universe, evolve over cosmic time has yielded precise measurements of the total matter content and its clumpiness, report scientists of the German eROSITA consortium, ...

Astronomy Feb 13, 2024

Discovery of unexpected ultramassive galaxies may not rewrite cosmology, but still leaves questions

Ever since the James Webb Space Telescope (JWST) captured its first glimpse of the early universe, astronomers have been surprised by the presence of what appear to be more "ultramassive" galaxies than expected. Based on ...

Space Exploration Feb 9, 2024

Lunar science is entering a new active phase

For the first time since 1972, NASA is putting science experiments on the moon in 2024. And thanks to new technologies and public-private partnerships, these projects will open up new realms of scientific possibility. As ...

Astronomy Feb 8, 2024

Active galaxies as standard candles: Is dust the culprit behind discrepancies?

When did the universe start? When and how did the first stars and galaxies form? What is the fate of the universe?

Astronomy Feb 6, 2024

What is dark energy? Inside our accelerating, expanding universe

Some 13.8 billion years ago, the universe began with a rapid expansion we call the Big Bang. After this initial expansion, which lasted a fraction of a second, gravity started to slow the universe down. But the cosmos wouldn't ...

Astronomy Jan 23, 2024

Motion of satellite galaxies suggests younger universe

In standard cosmological models, the formation of cosmological structures begins with the emergence of small structures, which subsequently undergo hierarchical merging, leading to the formation of larger systems. As the ...

General Physics Jan 22, 2024

Astrophysicists offer theoretical proof of traversable wormholes in the expanding universe

The expansion of the universe at some stage of evolution is well described by the Friedmann model. It was derived from general relativity a hundred years ago, but it is still considered one of the most important and relevant ...

Astronomy Jan 16, 2024

New calibration service paves way for next-generation radio cosmology experiments

A unique "passenger" is joining an upcoming mission to the moon.

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