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Astronomy Mar 11, 2024

Webb and Hubble telescopes affirm the universe's expansion rate, but the puzzle persists

The rate at which the universe is expanding, known as the Hubble constant, is one of the fundamental parameters for understanding the evolution and ultimate fate of the cosmos.

Astronomy Mar 11, 2024

More precise understanding of dark energy achieved using AI

A UCL-led research team has used artificial intelligence (AI) techniques to infer the influence and properties of dark energy more precisely from a map of dark and visible matter in the universe covering the last 7 billion ...

Environment Mar 7, 2024

A small earthquake and 'Moodus Noises' are nothing new for one Connecticut town

Donna Lindstrom was lying in bed and looking at her phone Wednesday morning when she heard a loud bang that rattled her 19th-century house in the central Connecticut town of East Hampton.

Astronomy Mar 7, 2024

Scientists solve the riddle of nitrogen-rich galaxy 440 million years after the Big Bang

For the first time, scientists have been able to explain the mystery behind the unusual chemical composition in one of the universe's most distant galaxies. The state-of-the-art theoretical model that the breakthrough research ...

Astronomy Mar 6, 2024

Astronomers spot oldest 'dead' galaxy yet observed

A galaxy that suddenly stopped forming new stars more than 13 billion years ago has been observed by astronomers.

Astronomy Mar 2, 2024

What ended the 'dark ages' in the early universe? New Webb data just brought us closer to solving the mystery

About 400,000 years after the Big Bang, the cosmos was a very dark place. The glow of the universe's explosive birth had cooled, and space was filled with dense gas —mostly hydrogen—with no sources of light.

Astronomy Mar 1, 2024

High-resolution simulations provide new insights into how galaxies are formed

Astronomers can use supercomputers to simulate the formation of galaxies from the Big Bang 13.8 billion years ago to the present day. But there are a number of sources of error. An international research team, led by researchers ...

Astronomy Feb 29, 2024

How 'the strong force' influences the gravitational wave background

Gravitationally speaking, the universe is a noisy place. A hodgepodge of gravitational waves from unknown sources streams unpredictably around space, including possibly from the early universe.

Astronomy Feb 28, 2024

A black hole discovery could force us to rethink how galaxies came to be

Peering deep into the infancy of the universe, the European Southern Observatory's Very Large Telescope (VLT) recently confirmed the discovery of the brightest and fastest growing quasar. Quasars are luminous objects in the ...

Optics & Photonics Feb 27, 2024

Trapping and excitation of the simplest molecule: Precise measurement matches theoretical predictions

The simplest possible molecule H2+ was one of the very first molecules to form in the cosmos. This makes it significant for astrophysics, but also an important object of research for fundamental physics. However, it is difficult ...

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