It's disturbingly easy to trick AI into seeing aliens, say researchers

Are we alone in the universe? Consider mysterious "extraterrestrial" radio signals. Unexplained gases on other planets.
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They tested 20 molecules in the air of a planet 124 light years away and thought one was the smell of an alien ocean, until other teams reran the data and 87 percent of t…

That sharp, briny smell is not the salt, it is a gas made by life, breathed out by tiny ocean creatures too small to see. For ...

Earth’s ‘second moon’ pictured for the first time

Experts suspect this space rock is a piece of the lunar surface torn off by a meteor impact, so it could be a time capsule ...