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dark energy

Space

Could 2025 be the year we finally start to understand dark energy?

A map of 31 million galaxies created by the Dark Energy Spectroscopic Instrument will be released next year, and could shed light on the origins of this mysterious force

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An artistic celebration of the Dark Energy Spectroscopic Instrument (DESI) year-one data, showing a slice of the larger 3D map that DESI is constructing during its five-year survey. By mapping objects across multiple periods of cosmic history with extremely high precision, DESI is allowing astronomers to make unprecedented measurements of dark energy and its effect on the accelerating expansion of the Universe. DESI???s map reveals the large-scale structure of the Universe, showing clumps of galaxies separated by voids where there are fewer objects. This pattern is a result of large pressure waves that permeated the early Universe and is reflected in the cosmic microwave background ??? a 2D snapshot of the radiation that filled the Universe shortly after the Big Bang, which bears the imprint of the 3D galaxy distribution. DESI is mounted on the U.S. National Science Foundation Nicholas U. Mayall 4-meter Telescope at Kitt Peak National Observatory, a Program of NSF NOIRLab. This version of the DESI map includes 600,000 galaxies ??? less than 0.1% of the survey's full volume. The locations of objects in the data slice do not correlate with their locations on-sky shown in this image.

Space

Einstein’s theories tested on the largest scale ever – he was right

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Space

First breathtaking images from Euclid telescope's map of the universe

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First breathtaking images from Euclid telescope's map of the universe
We are about to hear echoes in the fabric of space for the first time

Space

We are about to hear echoes in the fabric of space for the first time

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A slice through the largest 3D map of our universe to date

Space

Invisible 'dark radiation' may explain a big problem with dark energy

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Space

There are hints that dark energy may be getting weaker

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

Space

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

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The wonder particle: How axions could solve more than just dark matter

Physics

The wonder particle: How axions could solve more than just dark matter

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A second big bang? The radical idea rewriting dark matter’s origins

Physics

A second big bang? The radical idea rewriting dark matter’s origins

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Dark stars: Have we finally found a weird sun powered by dark matter?

Space

Dark stars: Have we finally found a weird sun powered by dark matter?

Astronomers say they have spotted evidence of stars fuelled by the annihilation of dark matter particles. If true, it could solve the cosmic mystery of how supermassive black holes appeared so early

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An artist impression of the Euclid space telescope

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Euclid space telescope is about to launch to probe the dark cosmos

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Can recreating black holes in the lab solve the puzzles of space-time?

Physics

Can recreating black holes in the lab solve the puzzles of space-time?

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Black hole

Space

Dark energy may have been hiding in the cores of black holes all along

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Why I'm choosing dark matter over dark energy - for now at least

Space

Why I'm choosing dark matter over dark energy - for now at least

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