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Assorted cannabis bud strains and glass jars isolated on black background - medical marijuana dispensary concept; Shutterstock ID 526723486; purchase_order: -; job: -; client: -; other: -

Health

Marijuana as medicine: Everything you need to know

Support for medical cannabis has skyrocketed in recent years, but when does it actually help? Here's what the evidence says about 20 conditions, including anxiety, cancer and insomnia

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Solid-state batteries

Technology

What are solid-state batteries and why do we need them?

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Space

Oddly bright burst may mean space is more transparent than we thought

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Health

Stunning image of how signals move through the heart wins photo prize

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Environment

Deforestation increased in 2022 despite pledges to save forests

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Health

How much does your immune system weigh? Now we have an answer

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Technology

GPT-4 gave advice on planning terrorist attacks when asked in Zulu

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Environment

Extensive melting of West Antarctic ice sheet now looks unavoidable

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A volunteer from the North Atlantic Salmon Fund with one of the escapee salmon

Life

On the hunt for thousands of salmon that escaped Icelandic fish farm

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Image of the Moon captured by the Galileo spacecraft

Space

The moon is 40 million years older than we thought it was

A new look at the age of zircon crystals in a lunar rock sample brought back by NASA's Apollo 17 mission in 1972 has revealed that the moon formed at least 4.46 billion years ago

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Society

Legalising marijuana hasn't been the quick fix the US hoped for

Comment

Technology

Mysterious rotation trick makes magnets float in the air

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Health

Schools cut covid-19 sick days by 20 per cent using HEPA air filters

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Humans

Humans caught more diseases after we domesticated animals

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