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Astronomy Feb 14, 2025

Release of Type Ia supernovae data may hold key to the history of the universe

A unique dataset of Type Ia supernovae being released today could change how cosmologists measure the expansion history of the universe.

Astronomy Feb 11, 2025

Does the universe behave the same way everywhere? Weak gravitational lensing could provide an answer

A study published in the Journal of Cosmology and Astroparticle Physics (JCAP) presents a methodology to test the assumption of cosmic homogeneity and isotropy, known as the Cosmological Principle, by leveraging weak gravitational ...

Quantum Physics Feb 7, 2025

Simulating particle creation in an expanding universe using quantum computers

A new study published in Scientific Reports simulates particle creation in an expanding universe using IBM quantum computers, demonstrating the digital quantum simulation of quantum field theory for curved spacetime (QFTCS).

Astronomy Feb 6, 2025

Astronomers find the largest structure in the universe and name it Quipu

Is it possible to understand the universe without understanding the largest structures that reside in it? In principle, not likely. In practical terms? Definitely not. Extremely large objects can distort our understanding ...

Astronomy Jan 23, 2025

Cosmological data suggest the universe has become 'messier and more complicated'

Across cosmic history, powerful forces have acted on matter, reshaping the universe into an increasingly complex web of structures. Now, new research led by Joshua Kim and Mathew Madhavacheril at the University of Pennsylvania ...

Astronomy Jan 23, 2025

Scientists use black-hole mergers to test symmetries of the universe

In an article published in Physical Review Letters on Thursday, scientists carried out an innovative study testing the existence of mirror asymmetries in our universe by studying the handedness of the gravitational-wave emission ...

Astronomy Jan 17, 2025

Turning the Hubble tension into a crisis: New measurement confirms universe is expanding too fast for current models

The universe really seems to be expanding fast. Too fast, even. A new measurement confirms what previous—and highly debated—results had shown: The universe is expanding faster than predicted by theoretical models, and faster ...

Astronomy Jan 15, 2025

NASA celebrates Edwin Hubble's discovery of a new universe

For humans, the most important star in the universe is our sun. The second-most important star is nestled inside the Andromeda galaxy. Don't go looking for it—the flickering star is 2.2 million light-years away, and is 1/100,000th ...

Astronomy Jan 8, 2025

Huge if true—dark energy doesn't exist, claims new study on supernovas

By looking at light from distant exploding stars called supernovas, in 1998 astronomers discovered the universe isn't just expanding—its expansion is speeding up. But what's behind this acceleration?

Astronomy Jan 7, 2025

Field-level inference: Unlocking the full potential of galaxy maps to explore new physics

Galaxies are not islands in the cosmos. While globally the universe expands—driven by the mysterious "dark energy"—locally, galaxies cluster through gravitational interactions, forming the cosmic web held together by dark ...

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