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cosmology

Space

We live in a cosmic void so empty that it breaks the laws of cosmology

Mounting evidence suggests our galaxy sits at the centre of an expanse of nothingness 2 billion light years wide. If so, we may have to rethink our understanding of the universe

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We live in a cosmic void so empty that it breaks the laws of cosmology

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One of the biggest mysteries of cosmology may finally be solved

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The multiverse could be much, much bigger than we ever imagined

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Many versions of Earth disappearing into the distance

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There are hints that dark energy may be getting weaker

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Early galaxy seen by JWST contains giant young stars and supernovae

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Early galaxy seen by JWST contains giant young stars and supernovae

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Some of the greatest cosmic discoveries have come about by accident

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Some of the greatest cosmic discoveries have come about by accident

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A legendary cosmologist on how to find a deeper theory of the universe

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A legendary cosmologist on how to find a deeper theory of the universe

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Wolf-Rayet stars are known to be efficient dust producers, and the Mid-Infrared Instrument (MIRI) on NASA?s James Webb Space Telescope shows this to great effect. Cooler cosmic dust glows at the longer mid-infrared wavelengths, displaying the structure of WR 124?s nebula. The nebula is made of material cast off from the aging star in random ejections, and from dust produced in the ensuing turbulence. This brilliant stage of mass loss precedes the star?s eventual supernova, when nuclear fusion in its core stops and the pressure of gravity causes it to collapse in on itself, and then explode. As MIRI demonstrates here, Webb will help astronomers to explore questions that were previously only left to theory about how much dust stars like this create before exploding in a supernova, and how much of that dust is large enough to survive the blast and go on to serve as building blocks of future stars and planets.

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How galactic mysteries near and far are poised to shake up cosmology

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Beatriz Nascimento Afro-Brazilian academic and activist

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Two books to write and the universe to decipher – 2024’s gonna be busy

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Abell 370 is a distant collection of several hundred galaxies

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Weird cosmic clumping hints our understanding of the universe is wrong

A vast survey of more than 25 million galaxies confirms we still can’t be sure how much matter clusters together, suggesting something is awry with the standard model of cosmology

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The Horsehead Nebula

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Euclid space telescope releases its first stunning full-colour images

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Space

Oddly bright burst may mean space is more transparent than we thought

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The quantum experiment that could help find evidence of the multiverse

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The quantum experiment that could help find evidence of the multiverse

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How the end of the universe was completely rewritten

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