The universe is vast and teeming with stars – but if intelligent life exists, it may not be able to visit Earth.

A team of astronomers found no radio signals from the comet that would suggest it is an extraterrestrial spaceship. The comet was confirmed in July 2025 as the third known object to enter our solar ...

For those peering nervously at the night sky, fearing that our newest celestial visitor might be the vanguard of an extraterrestrial fleet, the scientific community has a message: you can officially ...

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