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

The first unmistakable signal from another intelligence may not be a cheerful greeting. A growing group of researchers is arguing that our inaugural contact is more likely to be a distress call, the ...

If Earth picked up an alien signal, should humans reply or stay quiet? Here's the July episode of 'Ask an Astronomer.' ...

With new technologies come new opportunities. And that is especially true in astronomy—with every new advanced telescope, we have the potential to see (or in some cases, listen) farther and more ...

If it were a phone call, we might call it a butt dial: A strong radio signal that set off questions about whether it emanated from an advanced alien race earlier this week is now believed to have come ...

The moment of first contact with extraterrestrials is a staple of science fiction. It usually involves a frantic scientist having a Eureka moment, realising in a single dramatic instant that Earth is ...

If advanced aliens lived on a planet within a few hundred to a thousand light years away from Earth, then vast numbers of their signals must already have crossed Earth without being noticed, a new ...

Alien hunters update guidance on sharing news of possible intelligent life. Scientists searching for intelligent life beyond Earth have updated their guidance on how the world should be told if a ...

Signal Station is a tense, tactile sci-fi thriller where you are the operator of a remote listening station who intercepts the first confirmed alien signal. 1984. Remote listening station. An ...

Below is my ham radio. I have a permit for it, and you're allowed to use it. Adjust the bands and the dials to see if you can make contact with an alien! There are eight alien signals hidden within ...