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Space

These are the next comets that will be visible in 2023

Three comets named Hartley, Encke and Tsuchinshan will pass by the sun in the next few months and be visible from Earth. Here’s how you can spot them

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Plastic scrap in landfill

Technology

Waste plastic can be recycled into hydrogen fuel and graphene

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Students search desert for lost rocket after attempted launch to space

Space

Students search desert for lost rocket after attempted launch to space

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Life

Male butterflies plug attractive females’ genitals to stop them mating

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Technology

Super-heatproof computer memory survives temperatures over 500°C

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Ocellated lizard (Timon lepidus) skin

Life

Alan Turing mathematically predicted the colour of lizard scales

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Assorted telehealth mobile app icons

Health

US telehealth start-ups are booming – they may put patients at risk

Analysis

Life

We finally know what makes orange carrots orange

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A 3D-printed sphere dancing in carbonated water

Physics

Raisins and nuts dance in fizzy drinks and now we know why

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Environment

Jet fuel made with captured CO2 and clean electricity set for take-off

Several companies are beginning to scale up production of jet fuel made from captured carbon dioxide and green hydrogen, but decarbonising global aviation this way would require huge amounts of clean energy

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Space

Distant galaxies are gobbling up an unexpected amount of gas

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Health

Cannabis use disorder may raise the risk of a heart attack or stroke

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Life

Elusive Australian bat sometimes snacks on other bats

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Earth

Huge earthquake shook Seattle 1100 years ago and it could happen again

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