Somewhere out there, a planet roughly the size of Earth may be orbiting a distant star in conditions that could support life.

This video breaks down why K2-18b has suddenly become one of the most important planets in the search for life beyond Earth.

Scientists are raising concerns that we may be overlooking evidence of extraterrestrial life even when it is present. Hidden ...

The scientific search for extraterrestrial life is almost entirely focused on biosignatures, radio signals, and microbial ...

A new SETI study argues that turbulent space weather around distant stars can smear out ultra‑narrow alien radio signals, ...

A new exoplanet model screens rocky worlds by their ability to retain atmospheres over geologic timescales, helping narrow ...

Researchers have looked at how particular microbes from Earth would fare in conditions like those of Mars, the moon, and the ...

New research suggests sperm whales communicate in a complex language of their own. The implications for animal rights could be enormous.

NASA's Perseverance rover has uncovered one of the most intriguing clues yet in humanity's search for life beyond Earth.

The “Wow!” signal is one of our best pieces of evidence for aliens, but researchers are building a compelling case for a more ...

A rare visitor from another star system prompted SETI to hunt for alien technology, but the mysterious object appears to be a ...

Astronomers suggest that space weather could distort alien signals, making them undetectable. This challenges traditional ...