Have you been able to get in touch with the extraterrestrials yet?

The possibility that someday extraterrestrials would give us humans technology beyond ours would vastly accelerate progress, as if we were the Native Indians and they were the Conquistadors.

I have proof that all this is a conspiracy of our government with extraterrestrials.

Though some have been claiming ownership of extraterrestrial land, to include the Moon, are these claims bona fide?

Do you believe in extraterrestrials?

Some speculate that unknown and mysterious forces account for the unexplained disappearances within the Bermuda Triangle, such as extraterrestrials capturing humans for study; the influence of the lost continent of Atlantis; vortices that suck objects into other dimensions; and other whimsical ideas.

Dr. Carl Sagan helped design the plaques carried by both Pioneer 10 and Pioneer 11. These plaques, bearing the images of a man and a woman as well as a diagram showing Earth's location in the Galaxy, may one day be found by an extraterrestrial civilization.

On Tom's first visit to another inhabited planet he found it disconcerting to be referred to as an extraterrestrial.

Researchers from the GRAVITY consortium led by the Max Planck Institute for Extraterrestrial Physics realized that they had a "perfect laboratory" to test Einstein's theory with the Sagittarius A* black hole in the center of the Milky Way.

The thing about cheese is that no extraterrestrials have ever consumed it.