Like prehistoric cave paintings, finding interstellar extraterrestrial devices might indicate that the quest for immortality is universal to all sentient beings past and present throughout the Milky Way galaxy.
A research team has reported the discovery of a large extragalactic structure obscured from view beyond a portion of the Milky Way galaxy, in a new paper outlining their preliminary findings.
While humans have gleaned a tremendous amount of knowledge about the universe, there are several astronomical puzzles about our lives that remain mysterious.
An encounter with an ET culture would be a humbling experience, since we will have to admit that our modern science was developed only over the past century out of the 4.5-billion-years-long history of Earth.
Strange radio waves detected by astronomers in recent days have led some to believe that a hidden stellar object may be lurking near the center of the Milky Way.