The fictional biologist in ‘Project Hail Mary’ claims that potential alien organisms might not be made of carbon or require water, unlike life on Earth.

One of the longest-standing techniques in humanity’s search for life beyond Earth may be causing scientists to miss alien ...

Many people who don’t believe one conspiracy theory about that station—known as the High-frequency Active Auroral Research ...

“The universe is not as quiet as we were told.” The line belongs to a dramatic retelling of a disputed signal claim, but it captures a sober scientific problem: the first technosignature humanity ...

We may be missing alien radio signals because they have become smeared beyond the narrowband detectors that SETI utilizes, a new study suggests.

E.T. could be phoning home — but we’re not hearing the call. A new study published in The Astrophysical Journal argues that “space weather” could be distorting incoming transmissions from ...

Former President Barack Obama said he did not see evidence that aliens "have made contact with us," after sending social media abuzz by saying aliens were real on a podcast over the weekend. During a ...

Detection only happens if the source lies within a range where its signal is strong enough for our telescopes to detect, a distance that stands in for both signal strength and instrument sensitivity.

A new paper posits that advanced alien civilizations may communicate through subtle flashes, like fireflies do on Earth. The thought experiment suggests that we need to avoid human biases in our ...

Across the many stories set in the Alien universe, there’s evidence to suggest the xenomorphs are part of some kind of hivemind that, at some level, operates as a collective consciousness. The same ...

The Xenomorphs are coming back. It took a little longer than expected, but FX just announced that Noah Hawley’s Alien: Earth will return for season two. Fans had been waiting for the announcement ...

Alien probes could be hiding among us in plain sight as we search for them in the wrong places. This is the theory of professor Alex Ellery of Carleton University who argues that if self-replicating ...