The Fermi paradox asks why we haven’t found aliens yet. Scientists say the answer may lie in timing, technology, and the vast ...
Attention human. You are receiving an interstellar radio transmission. And it could be coming from one of the nearest exoplanets, Proxima Centauri b. What conditions make this planet a candidate for ...
A Soviet astronomer in the 1960s proposed a scale to classify hypothetical alien civilizations. Here’s why the framework is ...
The best way to find alien technosignatures is to look for ones that have long survived their creators, according to a new ...
New research suggests that alien radio signals may be transformed by plasma from their home stars — and scientists on Earth could thus be overlooking prime evidence of alien intelligence.
In 1995, a pair of scientists discovered a planet outside our solar system orbiting a solar-type star. Since that finding—which ...
When people imagine first contact with aliens, they often picture giant ships in the sky or wise beings sending peaceful messages.
The Search for Extraterrestrial Intelligence (SETI) is a dream of humanity, but advanced extraterrestrial civilizations do not ...
Interstellar objects such as Comet 3I/ATLAS can be sent by alien civilizations to "sow" life on Earth. At the same time, it is ...
The curious minds at What If explore what would happen if there were an alien civilization on Proxima b.
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