Space operas are a cornerstone of science fiction, with the very best of them combining epic adventures with character-driven ...

K2-18b is one of the most promising worlds for the search for extraterrestrial life, so astronomers conducted an unusually ...

The Fermi paradox asks why we haven’t found aliens yet. Scientists say the answer may lie in timing, technology, and the vast ...

Tau is in sight.

A new study by Amirnezam Amiri of the University of Arkansas explores how these hypothetical "Dyson swarms" would appear ...

A Soviet astronomer in the 1960s proposed a scale to classify hypothetical alien civilizations. Here’s why the framework is ...

Only at the precipice do we evolve.” Those words, spoken by Professor Barnhardt in The Day the Earth Stood Still, capture one ...

Star Trek's Prime Directive revolutionized the science fiction genre by promoting cooperation and non-interference with alien ...

Project Hail Mary, Solaris, and The Hitchhiker's Guide to the Galaxy are all among the very best sci-fi books set in space.

A polarizing Harvard astronomer has been appointed to lead a Trump administration panel studying UFOs. Avi Loeb is leading a ...

The Great Filter theory suggests advanced civilisations may self-destruct before contacting others, explaining the universe's silence.