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

With new technologies come new opportunities. And that is especially true in astronomy—with every new advanced telescope, we ...

It catches very low frequency radio waves made by lightning, solar storms and charged particles moving through Earth’s ...

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 has undergone one of the most extensive technosignature searches ever conducted on an ...

When a radio signal leaves a distant planet, it does not immediately travel through empty space. First, it has to pass through the turbulent environment surrounding its home star, and that short ...

We're still in the definition phase of the Habitable Worlds Observatory (HWO), but it seems like every week a new research group comes out with a paper helping to shape what is becoming one of the ...

A meteor explosion over Boston triggered a loud boom across Massachusetts, with NASA confirming a fireball as online alien cover-up theories quickly spread. Pixabay A powerful boom heard across parts ...

When astrobiologists are asked what aliens might look like, many now point not to distant galaxies but to some of the strangest corners of Earth, where researchers on several continents are using ...

Artist’s depiction of exoplanet K2-18b. Credit: Illustration: NASA, ESA, CSA, Joseph Olmsted (STScI); Science: Nikku Madhusudhan (IoA) A major SETI search found no artificial narrowband radio signal ...

This article was featured in the One Story to Read Today newsletter. Sign up for it here. When President Trump promised, in a social-media post in February, “to begin the process of identifying and ...