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Space

One of the biggest mysteries of cosmology may finally be solved

The expansion rate of the universe, measured by the Hubble constant, has been one of the most controversial numbers in cosmology for years, and we seem at last to be close to nailing it down

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Mathematics

The mathematician who worked out how to time travel

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The best new science fiction books of April 2024

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The best new science fiction books of April 2024

Culture

Japan’s SLIM moon lander surprisingly survived a second lunar night

Space

Japan’s SLIM moon lander surprisingly survived a second lunar night

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Early galaxy seen by JWST contains giant young stars and supernovae

Space

Early galaxy seen by JWST contains giant young stars and supernovae

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Artist's concept of an Artemis astronaut deploying an instrument on the lunar surface

Space

NASA’s Artemis astronauts will try to grow plants on the moon

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See the messages NASA is sending to Jupiter's icy moon, Europa

Space

See the messages NASA is sending to Jupiter's icy moon, Europa

Regulars

Some of the greatest cosmic discoveries have come about by accident

Space

Some of the greatest cosmic discoveries have come about by accident

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Physics

Most accurate clock ever can tick for 40 billion years without error

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Martin MacInnes: 'Science fiction can be many different things'

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Martin MacInnes: 'Science fiction can be many different things'

The author of In Ascension, the latest pick for the 91av Book Club, on why he wrote his novel, cultivating a sense of wonder and the role of fiction in the world today

Culture

Space

SpaceX’s Starship created a volcano-like explosion in first launch

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Space

Starship launch: Third flight reaches space but is lost on re-entry

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Space

Starship launch 3: What time is the SpaceX flight today?

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Physics

How one theory ties together everything we know about the universe

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