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Aerial shot of Chernobyl nuclear reactors with straight canals around in spring; Shutterstock ID 1387140884; purchase_order: -; job: -; client: -; other:

Physics

The biggest threat to Chernobyl is no longer radiation

Forty years after the world’s biggest nuclear disaster, the safety of Chernobyl hangs in the balance – though not because of the radiation risk

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Tower of device made of copper discs connected by glowing wires and vacuum tubes. Illustration of the concept of quantum computer and computing

Technology

We urgently need to prepare for quantum computers breaking encryption

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Dust rising from combine during crop harvesting, no-till technology professional occupation.

Environment

The Iran war is exposing the huge risks in our food system

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EAF952 the end of the road where a road dead ends into the Salton Sea with a sign and barrier

Mind

Want to live forever? There are major questions to confront, first

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Robot using multi colored abacus under light beam. No people are seen in frame. Shot indoor with a full frame mirrorless camera.

Technology

The success of machine mathematicians shows us how to be OK with AI

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Health

How a midlife tune-up could help prepare you for a healthy old age

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Dark Matter Core Defies Explanation NASA ID: GSFC_20171208_Archive_e001774 NASA image release March 2, 2012 This composite image shows the distribution of dark matter, galaxies, and hot gas in the core of the merging galaxy cluster Abell 520, formed from a violent collision of massive galaxy clusters. The natural-color image of the galaxies was taken with NASA's Hubble Space Telescope and with the Canada-France-Hawaii Telescope in Hawaii. Superimposed on the image are "false-colored" maps showing the concentration of starlight, hot gas, and dark matter in the cluster. Starlight from galaxies, derived from observations by the Canada-France-Hawaii Telescope, is colored orange. The green-tinted regions show hot gas, as detected by NASA's Chandra X-ray Observatory. The gas is evidence that a collision took place. The blue-colored areas pinpoint the location of most of the mass in the cluster, which is dominated by dark matter. Dark matter is an invisible substance that makes up most of the universe's mass. The dark-matter map was derived from the Hubble Wide Field Planetary Camera 2 observations, by detecting how light from distant objects is distorted by the cluster galaxies, an effect called gravitational lensing. The blend of blue and green in the center of the image reveals that a clump of dark matter resides near most of the hot gas, where very few galaxies are found. This finding confirms previous observations of a dark-matter core in the cluster. The result could present a challenge to basic theories of dark matter, which predict that galaxies should be anchored to dark matter, even during the shock of a collision. Abell 520 resides 2.4 billion light-years away. To read more go to: www.nasa.gov/mission_pages/hubble/science/dark-matter-cor... Credit: NASA, ESA, CFHT, CXO, M.J. Jee (University of California, Davis), and A. Mahdavi (San Francisco State University)

Space

Why cosmology seems to be caught in a vibe shift

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pretty colored woman in casual clothes, lying on a yellow colored wall with her eyes closed, resting

Health

Why the sleep industry has got us worrying about the wrong things

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TTT8PK Cute girl eating sweet food while sitting at restaurant

Health

We need to get better at identifying postpartum depression in dads

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Doctor wheeling patient

Health

Rethinking our approach to BMI highlights the need for speed

We must find a balance between haste and getting mired in medical inertia

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Health

Personalised medicine is yet to deliver, but that must start to change

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Health

It would be a mistake to rush into an under-16 social media ban

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Life

How – and why – we chose the best 21 ideas of the 21st century

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Health

AI is promising to revolutionise how we diagnose mental illness

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