A common axiom in the search for extraterrestrial intelligence (SETI) is that if we do detect technologically advanced aliens ...

The skepticism and debate around the question of "are we alone in the universe" makes the field of astrobiology more cautious ...

Only a small fraction of our galaxy has been studied and the question of whether aliens exist is something scientists have been trying to understand, explore and figure out for a long time.

We literally fight against the second law of thermodynamics to forge these exquisitely ordered, low-entropy structures out of raw materials that are decidedly high entropy in their messy natural ...

Sustainability may be an unavoidable feature of advanced civilizations, making advanced technology “indistinguishable from ...

Even if we were to look attractive enough for aliens to send a message, or vice versa, it could take dozens, if not hundreds, of lightyears to reach us. In contrast, ...

Stories about the existence of aliens, and our chances of detecting them, tend to be positive. We are told that we might ...

Robert Smith is convinced the aliens have won. "The invasion has happened—it's all over," says the University of Alberta ...

Aliens can only see what we’ve built after we’ve already built it, and it takes time for those light signals from our constructions to make their way out into the cosmos.

When we turn to “complex” extraterrestrial life or “intelligent” aliens, our results were 67.4% agreement, and 58.2% agreement, respectively for astrobiologists and other scientists. So, scientists ...

We’ve still not found aliens, even though a majority of the scientific community, as well as the general public, believe they exist. Mind you, radio waves from the cosmos are commonplace, ...