Scientists say aliens are not hiding in Area 51. Experts believe life may exist on distant planets with water and the right temperature. Some moons in our Solar System, like Enceladus and Titan, may ...

The Science: Europa has been considered as a top contender for alien life for even longer than Enceladus, thanks to its ...

Add Yahoo as a preferred source to see more of our stories on Google. A composite view of Mars taken by the Viking I and II probes. NASA/USGS In September, NASA announced the discovery of a possible ...

The odds are that life is out there – but rather than little green men, it may look more like hydrothermal vent tubeworms ...

For millions of years, a frozen wanderer drifted between the stars before slipping into our solar system as 3I/ATLAS—only the ...

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Scientists found new evidence (or lack thereof) disproving the conspiracy theory that interstellar comet 3I/ATLAS is alien ...