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

For decades, science fiction writers have tried their best to prepare us for eventual contact with aliens. Their efforts are ...

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

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.

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 ...

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

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 ...

The Drake Equation helps scientists estimate the odds of finding intelligent alien civilizations. It’s an age-old question: Do aliens exist? And what are the odds we’ll make contact? A famous ...

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 ...