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Explore the most exciting new ideas and emerging concepts in science, health, technology and the environment with 91av’s exclusive in-depth articles, interviews and long reads.

Technology

Deepfake videos create false memories – but so do fake articles

After watching a deepfake movie clip that inserted Charlize Theron into Captain Marvel, 70 per cent of people thought the movie remake actually existed.

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Environment

Reaching net zero will cost billions more due to interest rate rises

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Newton’s first law says that objects move at constant speeds until a force affects them

Physics

Newton’s first law appears to break down in the quantum realm

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Life

Shortage of male turtles could be solved by splash of cold seawater

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Earth

GPS could predict earthquakes two hours ahead, but there’s a catch

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Jars used for milling the powder

Chemistry

Widely used chemicals can now be made without using toxic gas

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The probe can be inserted into a blood vessel via a catheter (cyan)

Health

Deep-brain probe can read a rat’s brain without surgical implants

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Environment

Much of Greenland’s ice could melt even if world doesn’t get warmer

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This Hubble Space Telescope image of the asteroid Dimorphos was taken on December 19, 2022, nearly four months after the asteroid was impacted by NASA?s DART mission (Double Asteroid Redirection Test). Hubble?s sensitivity reveals a few dozen boulders knocked off the asteroid by the force of the collision. These are among the faintest objects Hubble has ever photographed inside the solar system. The free-flung boulders range in size from three feet to 22 feet across, based on Hubble photometry. They are drifting away from the asteroid at a little more than a half-mile per hour. The discovery yields invaluable insights into the behavior of a small asteroid when it is hit by a projectile for the purpose of altering its trajectory.

Space

NASA’s asteroid-smashing space debris spotted by Hubble telescope

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Health

Obesity may damage immune cells that prevent psoriasis

Mice with obesity have fewer immune cells in their skin that protect against psoriasis-related inflammation, potentially explaining why obesity increases the risk of the condition

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Life

Two new sabretooth cat species identified from fossils in South Africa

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Life

Postmenopausal orcas seem to prevent sons from getting into fights

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Health

No clear evidence that meditation or mindfulness makes you happy

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Life

Basking sharks are one of the few warm-blooded species of fish

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