“Hollywood has preconditioned us to expect one of two types of alien contact, either a hostile invasion force or a benevolent ...

Could the first confirmed signal from an extraterrestrial source be less a hello than a goodbye? Astrophysicist David Kipping ...

The first unmistakable signal from another intelligence would rank alongside fire and writing in the story of our species, yet a growing group of researchers warns that such a moment might arrive not ...

There's the invasion by a warlike species, there's the highly evolved species trying to communicate with our primitive ...

Aliens might be transmitting communications signals to each other across exoplanets, some astronomers think. Since these signals are likely sent as narrowband radio waves, we may now have a way to ...

Interstellar objects such as Comet 3I/ATLAS can be sent by alien civilizations to "sow" life on Earth. At the same time, it is almost impossible that for the entire time of Earth's existence the Earth ...

Scientists suggest the first alien signal we detect could be a desperate cry for help from a fading civilization.

That’s the question at the center of Pop Mech ’s new story, “ Aliens Probably Exist—But They’re Staying Silent For a Reason, ...

Hunting for alien civilizations isn't a matter of just waiting around for them to show up; it's the business of combing through enormous volumes of data to look for peculiar signals. When you purchase ...

The Fermi Paradox ponders an endlessly fascinating question: If so many worlds exist in the universe, why haven’t we detected any sign of extraterrestrial life? A possible reason, called the ...

In 1995, a pair of scientists discovered a planet outside our solar system orbiting a solar-type star. Since that finding—which won the scientists a portion of the 2019 Nobel Prize in ...

After searching 100,000 galaxies for signs of highly advanced extraterrestrial life, a team of scientists using observations from NASA's WISE orbiting observatory has found no evidence of advanced ...