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The Economist
The Economist
24 Jul 2024


NextImg:The deep sea is home to “dark oxygen”
Science and technology | Deep breaths

The deep sea is home to “dark oxygen”

Nodules on the seabed, rather than photosynthesis, are the source of the gas

THE VAST majority of Earth’s oxygen is made as a by-product of photosynthesis, the use of light to convert water and carbon dioxide into sugars. Any oxygen found in regions where photosynthesis is impossible—such as the abyssal seafloor, a pitch-black realm up to 6,000 metres deep—was thought to be surface gas on the move.

How Ukraine’s new tech foils Russian aerial attacks

It is pioneering acoustic detection, with surprising success

Augmented reality offers a safer driving experience

Complete with holograms on the windscreen


Clues to a possible cure for AIDS

Doctors, scientists and activists meet to discuss how to pummel HIV


How Ukraine’s new tech foils Russian aerial attacks

It is pioneering acoustic detection, with surprising success

Augmented reality offers a safer driving experience

Complete with holograms on the windscreen


Clues to a possible cure for AIDS

Doctors, scientists and activists meet to discuss how to pummel HIV


AI can predict tipping points before they happen

Potential applications span from economics to epidemiology

Astronomers have found a cave on the moon

Such structures could serve as habitats for future astronauts

H5N1 avian flu could cause a human pandemic

Existing immunity and vaccines may soften its severity