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Environment

Record heat in 2023 and 2024 may just have been natural variability

Simulations suggest that an extraordinary jump in temperatures seen in 2023 and 2024 could simply be natural variability, rather than a new phase of climate change as some researchers have suggested

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This new Picture of the Month from the NASA/ESA/CSA James Webb Space Telescope features an astounding number of galaxies. The objects in this frame span an incredible range of distances, from stars within our own Milky Way, marked by diffraction spikes, to galaxies billions of light-years away.?? The star of this image is a group of galaxies, the largest concentration of which can be found just below the centre of this image. These galaxies glow with white-gold light. We see this galaxy group as it appeared when the Universe was 6.5 billion years old, a little less than half the Universe???s current age. More than half of the galaxies in our Universe belong to galaxy groups like the one pictured here. Studying galaxy groups is critical for understanding how individual galaxies link up to form galaxy clusters, the largest gravitationally bound structures in the Universe. Belonging to a galaxy group can also alter the course of a galaxy???s evolution through mergers and gravitational interactions. The galaxy group pictured here is the most massive group in what???s called the COSMOS-Web field. COSMOS stands for Cosmic Evolution Survey. This survey has enlisted several telescopes, including Webb, the NASA/ESA Hubble Space Telescope, and ESA???s XMM-Newton space observatory to gaze deeply at a single patch of sky.?? COSMOS-Web aims to understand how massive structures like galaxy clusters came to be. Webb???s infrared capabilities and sensitive instruments have pushed the search for galaxy groups farther back into cosmic history, revealing galaxy groups as far back as when the Universe was only 1.9 billion years old ??? just 14% of its current age. This image combines infrared data from Webb???s Near-InfraRed Camera (NIRCam) instrument with further infrared observations from the Hubble Space Telescope. The X-ray data, shown in purple, highlights the presence of hot gas concentrated within the X-ray galaxy group. These X-ray data come from ESA???s XMM-Newton space observ

Space

Colourful group of galaxies offers peek into history of the universe

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Environment

Major US cities like New York and Seattle are sinking at a rapid rate

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Indiana Jones and Raiders of the Lost Ark film still
Humans

Indiana Jones vs Lara Croft: Ranking the best fictional archaeologists

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Mathematics

The maths that tells us when a scientific discovery is real 鈥� or not

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Health

Dementia cases are rising faster in China than the rest of the world

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Earth

99.999 per cent of the deep seabed remains unexplored by humans

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Life

The birds upending our idea of shared parenting

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Life

Strange microbes give clues to the ancestor of all complex life

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Technology

Concerns raised over AI trained on 57 million NHS medical records

The makers of an AI model called Foresight say it could help predict disease or hospitalisation rates, but others have expressed concern about the fact it is trained on millions of health records

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Physics

Nothing is stronger than quantum connections 鈥� and now we know why

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Environment

How Tara Polar Station will push the limits of Arctic research

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Physics

Why physicists keep trying to get rid of space-time entirely

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Environment

A clean energy source may be lurking beneath mountain ranges

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