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 ...

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

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 ...

Despite the universe's vastness, containing billions of stars and galaxies, humanity has yet to encounter alien life.

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 ...