The first unmistakable sign of extraterrestrial technology may not arrive as a calm greeting. It may look more like a flare.

The history of astronomical discovery shows that many of the most detectable phenomena, especially detection firsts, are not ...

Add Yahoo as a preferred source to see more of our stories on Google. Collage of a telescope under a starry sky and a planet in space. Earthlings, brace yourselves: the galaxy may be emptier than your ...

What geophysical criteria must exist on exoplanets teach scientists about whether technological civilizations exist throughout the galaxy? This is what a recent study presented at the Europlanet ...

For decades, scientists have grappled with a profound question known as the Fermi Paradox: if the galaxy is teeming with the potential for extraterrestrial life, why is the cosmos so quiet? A new ...

In 1995, a pair of scientists discovered a planet outside our solar system orbiting a solar-type star. Since that finding—which won the scientists a portion of the 2019 Nobel Prize in ...

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Earthlings, brace yourselves: the galaxy may be emptier than your last Tinder date. According to a new study, any alien civilizations out there? Probably short-lived — and doomed to fail spectacularly ...