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cosmology

'alien megastructure' star

Space

Comets can't explain weird 'alien megastructure' star after all

A star called KIC 8462852, or Tabby's star, has been behaving oddly since 1890, not just recently as had been thought – and astronomers have no idea why

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We've found the brightest ever supernova but can't explain it

Space

We've found the brightest ever supernova but can't explain it

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Time might flow backwards as well as forwards from the big bang

Space

Time might flow backwards as well as forwards from the big bang

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New rumours that gravitational waves have finally been detected

Space

New rumours that gravitational waves have finally been detected

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Supermassive black holes might be hiding entire universes inside

Space

Supermassive black holes might be hiding entire universes inside

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Giant galaxy caught tearing apart its little neighbour

Space

Giant galaxy caught tearing apart its little neighbour

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Can burping black holes reveal the true fabric of the universe?

Space

Can burping black holes reveal the true fabric of the universe?

Features

Dark matter's true face could be unmasked by pairs of dead stars

Space

Dark matter's true face could be unmasked by pairs of dead stars

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God vs the multiverse: The 2500-year war

Space

God vs the multiverse: The 2500-year war

Features

New Scientist Default Image

Space

Black holes have a size limit – of 50 billion suns

Physicists have set a theoretical limit on the mass of a black hole by figuring out when it will disrupt the disc that feeds it

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Space

Tiny dark matter stars would harbour particles that act as one

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Space

Pathfinder blasts off to look for Einstein's gravitational waves

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Space

How to encrypt a message in the afterglow of the big bang

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Space

How to encrypt a message in the afterglow of the big bang

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