Research on exoplanets over the next couple of decades could help us more accurately estimate how many intelligent alien civilisations there are in our galaxy.
Articles on Alien intelligence
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What kind of evidence would we really need, before we could reasonably conclude alien contact had been made?
One in a million or one in ten? Mathematics can help us work out the odds of whether recent sightings of UFOs are really alien spaceships.
A new study argues we should search for microbial life rather than human-like aliens.



