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space-time

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Physics

Quantum trick sees light move forwards and back in time simultaneously

Placing a particle of light in a superposition so that it is travelling both forwards and backwards in time could prove useful for quantum computation

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Abell 370 picture

Space

Astronomers saw a distant supernova less than 6 hours after it blew up

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A deer in front of a car

Environment

Annual US clock change kills 33 people and 36,500 deer in car crashes

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Light from MACS0647-JD is bent and magnified by the massive gravity of this cluster of galaxies, called MACS0647, causing it to appear in multiple places (highlighted in boxes)

Space

JWST finds ancient galaxy may actually be two galaxies merging

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Researchers at SLAC National Accelerator Laboratory are nearly done with the LSST Camera, the world's largest digital camera ever built for astronomy. Roughly the size of a small car and weighing in at three tons, the camera features a five-foot wide front lens and a 3,200 megapixel sensor that will be cooled to -100??C to reduce noise. Once complete and in place atop the Vera C. Rubin Observatory's Simonyi Survey Telescope in Chile, the camera will survey the southern night sky for a decade, creating a trove of data that scientists will pore over to better understand some of the universe's biggest mysteries, including the nature of dark energy and dark matter. (Jacqueline Ramseyer Orrell/SLAC National Accelerator Laboratory)

Technology

Astronomers have unveiled the world’s largest digital camera

Regulars

Fully deployed Webb telescope. Artist concept. The James Webb Space Telescope.

Space

The extraordinary JWST is named for James Webb, whose legacy I deplore

Comment

Experiment in photonic laboratory with laser

Physics

Quantum watch is a 'completely new way of measuring time'

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The giant El Gordo galaxy cluster

Space

JWST spots smallest galaxy outside our local universe

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Electron microscope image of the new aluminium alloy

Chemistry

Aluminium alloy could boost spacecraft radiation shielding 100-fold

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Lake Powell

Environment

Shocking images show scale of megadrought devastation in North America

The megadrought in south-western North America is the worst in more than 1000 years. These images from space reveal how much the severe dry spell is changing the landscape

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Space

JWST has taken a star-studded new image of the Pillars of Creation

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Space

JWST has spotted bizarre rings of dust around a dying star

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Health

Human hibernation is a real possibility - this is how it might work

Features

How spherical-cow philosophy makes hard physics problems easy

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