快猫短视频

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AYMTTG A man looks at a display in the Hall of Biodiversity American Museum of Natural History

Life

Why avoiding a sixth mass extinction is easier than it sounds

Life

There鈥檚 growing evidence the big five mass extinctions never happened

Health

Discovering the marvels of mucus is inspiring amazing new medicines

A woman in a green top surveys some supermarket ailes

Health

Do corporations actually have more control over your health than you?

Table of contents

Leaders

AYMTTG A man looks at a display in the Hall of Biodiversity American Museum of Natural History

Life

Why avoiding a sixth mass extinction is easier than it sounds

Putting an end to a mass extinction sounds like an impossible task, but some researchers argue that doing so would be setting our ambitions too low

快猫短视频

The eye is first drawn, in this new NASA/ESA/CSA James Webb Space Telescope Picture of the Month, to the central mega-monster that is galaxy cluster Abell S1063. This behemoth collection of galaxies, lying 4.5 billion light-years from Earth in the constellation Grus (the Crane), dominates the scene. Looking more closely, this dense collection of heavy galaxies is surrounded by glowing streaks of light, and these warped arcs are the true object of scientists??? interest: faint galaxies from the Universe???s distant past. Abell S1063 was previously observed by the NASA/ESA Hubble Space Telescope???s Frontier Fields programme. It is a strong gravitational lens: the galaxy cluster is so massive that the light of distant galaxies aligned behind it is bent around it, creating the warped arcs that we see here. Like a glass lens, it focuses the light from these faraway galaxies. The resulting images, albeit distorted, are both bright and magnified ??? enough to be observed and studied. This was the aim of Hubble???s observations, using the galaxy cluster as a magnifying glass to investigate the early Universe. The new imagery from Webb???s Near-Infrared Camera (NIRCam) takes this quest even further back in time. This image showcases an incredible forest of lensing arcs around Abell S1063, which reveal distorted background galaxies at a range of cosmic distances, along with a multitude of faint galaxies and previously unseen features. This image is what???s known as a deep field ??? a long exposure of a single area of the sky, collecting as much light as possible to draw out the most faint and distant galaxies that don???t appear in ordinary images. With 9 separate snapshots of different near-infrared wavelengths of light, totalling around 120 hours of observing time and aided by the magnifying effect of gravitational lensing, this is Webb???s deepest gaze on a single target to date. Focusing such observing power on a massive gravitational lens, like Abell S1063, therefore h

Space

Peer into the early universe as light bends around huge galaxy cluster

Abell S1063 is so massive that the light from distant galaxies bends around it, allowing it to act as a magnifying glass to the early universe

Physics

Do we have free will? Quantum experiments may soon reveal the answer

Life

Fossils show puzzling lack of evolution during last ice age peak

Space

Amazing images reveal new details in the sun’s atmosphere

Humans

We鈥檙e about to unlock the secrets of ancient human brains

Health

PTSD in 9/11 responders didn鈥檛 start improving for nearly a decade

Environment

Test of AI weather forecasts shows they miss extreme storms

Technology

Qubit breakthrough could make it easier to build quantum computers

Humans

Before the Great Wall, Chinese rulers built a shallow ditch

Technology

Any wall can be turned into a camera to see around corners

Environment

Hurricanes aren’t cooling off future storms as much as they once did

Life

First evidence of ancient birds nesting above the Arctic circle

Life

We鈥檙e getting close to recreating the first step in evolution of life

Humans

Humans were crafting tools from whale bones 20,000 years ago

Humans

Medieval woman was executed and displayed on London riverbank

Health

How fast you age is dictated by your sex, ethnicity and education

Mathematics

You can make fair dice from any shape you like

Space

Was Planet Nine exiled from the solar system as a baby?

Analysis

Environment

At this rate, carbon dioxide removal will never matter for the climate

The carbon dioxide removal industry is struggling to grow at the pace needed to have a significant role in meeting climate targets

Space

Will SpaceX鈥檚 Starship rocket ever work 鈥� and what if it doesn鈥檛?

Health

Cord blood banking is not living up to its promise

Aperture

Clare Hewitt: Everything in the forest is the forest Oak leaf lumen prints exposed to the sun on the forest floor

Life

Dazzling oak leaf prints merge science and nature

Artist Clare Hewitt uses fallen oak leaves and sunlight to create her works of art before returning the leaves to the forest

Features

Life

There鈥檚 growing evidence the big five mass extinctions never happened

Surprising new fossil evidence undermines the idea that there was ever a mass extinction on land 鈥� and may force us to reframe the current biodiversity crisis

Health

Do corporations actually have more control over your health than you?

Health

Discovering the marvels of mucus is inspiring amazing new medicines

Culture

Dane physicist Niels Bohr, pictured in his laboratory, received the 1922 Nobel Prize in Physics for his work on the structure of atoms.

Physics

Ambitious book on quantum physics still fails to be accessible

A new book on quantum physics is pleasingly full of cutting-edge topics. Yet it isn't the accessible work it promised to be

Humans

快猫短视频 recommends Tutankhamun: The immersive exhibition

Mathematics

Why exploring “equality” in a new maths book may help the real world

Space

Life of first US woman in space Sally Ride makes a moving documentary

More

Health

Why nobody is neurodiverse and nobody is neurotypical

Being accurate in the language we use to describe conditions like ADHD matters, and can lead to better outcomes for those affected. The words we choose to use are important, say Alex Conner and James Brown, hosts of podcast The ADHD Adults

Environment

Could undersea living be the future as sea levels rise?

Health

What is the best workout to lower your blood pressure?

Tom Gauld: Learn to read with Physics 鈥� lesson one

Twisteddoodles on why we left the ocean

Regulars

Comment

Could a race between microscopic competitors be the next big thing?

Feedback is amazed to see sperm racing touted as a new track sport, but it鈥檚 going to take a lot of CGI and other fakery to help it take off

This Week鈥檚 Letters

Is it possible to reheat food without additionally cooking it?

Does car tyre pressure affect the speedometer or milometer readings?

This week鈥檚 new questions

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