Stellar plasma can smear alien radio signals before they escape their star system, making them harder for astronomers to detect.

"If a signal gets broadened by its own star's environment, it can slip below our detection thresholds, even if it's there." ...

A viral podcast moment last month reignited speculation about extraterrestrials and prompted President Donald Trump’s commitment to kickstarting the release of government files on flying saucers. But ...

According to a new study, any alien civilizations out there? Probably short-lived — and doomed to fail spectacularly. For ...

A new study published in The Astrophysical Journal argues that “space weather” could be distorting incoming transmissions from extraterrestrials. The paper, penned by researchers at the SETI (Search ...

Looking for molecular evidence of life on other worlds is tricky, but a test based on the reactivity of carbon compounds ...

Humans have practiced head shaping for tens of thousands of years, and anthropologists are beginning to uncover clues as to why.

Assuming intelligent aliens know how to harvest energy from stars, would humanity be able to spot these high-level structures?

There is a silence in the night sky that has bothered me for as long as I can remember. ” Richard Feynman’s reflection lingers because it feels personal.

Our search for extraterrestrial life has turned up empty, perhaps because technologically advanced civilizations are doomed ...

There is a silence in the night sky that has bothered me for as long as I can remember. ” That observation, attributed to ...

There have been around 945 episodes of Star Trek, spread across more than a dozen shows, aired over sixty years. Yet for all the times Starfleet crew members have probed the intricacies of alien civil ...