Physics
Aliens slumbering for billions of years are out there 鈥� really?
Trying to explain the Fermi paradox by invoking aliens that sleep for aeons is a speculative idea to be taken with a large pinch of salt, says Geraint Lewis
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Physics
When is a black hole not a black hole? When it鈥檚 a boson star
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Physics
Time to embrace our odd place in the cosmos, inside a huge void?
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Physics
General relativity passes test at Milky Way’s central black hole
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Physics
LIGO鈥檚 third detection hints at how black hole binaries are born
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Space
NASA mission into sun鈥檚 atmosphere named after astrophysicist
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Physics
The quantum leak that could give rise to dark energy
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Physics
LIGO could detect gravitational waves鈥� permanent space-time warp
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Space
Earth may have been born in a huge flare-up of the young sun
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Space
Neutron stars that slow down could be eating ‘backwards’ gas
Most binary neutron stars are thought to spin ever faster as they devour their companions - but some slow down, and it could be to do with their gassy meals
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Physics
Quantum effects cloak impossible singularities with black holes
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Physics
Gravitational waves slow the spin of shape-shifting neutron star
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Physics
Have we found evidence that we live in a holographic universe?
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Earth
Earth鈥檚 water must have arrived here earlier than we thought
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