These findings suggest that the absence of past detections does not mean discovery is imminent. If extraterrestrial ...

Small, rocky planets can coalesce around a wide variety of stars, suggesting that Earth-like alien worlds may have formed early and often throughout our Milky Way galaxy's history, a new study reveals ...

Alien planets are far away but extreme lasers on Earth are giving scientists a way to investigate what they're like.

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 ...

New SETI research suggests space weather like solar winds could be interfering with alien radio signals, making them harder to detect.

Aliens: "Sorry, you're cutting out!" The post Something May Be Scrambling Alien Messages, NASA-Funded Research Finds appeared ...

"I usually try not to call things 'Rosetta stones,' but this is as close to a Rosetta stone as anything I've seen," said co-author John Johnson, also of Caltech. "It's like unlocking a language that ...

August has been a month jam-packed with cosmic phenomena visible from Earth – from nebulas to meteor showers to planetary conjunctions. But the month isn't over yet. And now, add to the mix one of the ...

Despite the universe's vastness, containing billions of stars and galaxies, humanity has yet to encounter alien life. Scientists are actively searching for habitable planets and signs of life, but the ...