Area 51 relates to humanity encountering aliens, and the trials that ensue.

And you have encountered aliens that resemble us greatly.

During the game, players may encounter various aliens and villains from the series - but don't worry, as the doctor's companions are on hand to help.

The Romanian forest episode, in the episode they believed they were encountering ghosts or aliens.

Well, she was wearing a costume which marked her as alien to Optheria, but surely these people had encountered aliens before.

He then alleges a month later to have levitated through a wall and encountered other aliens aboard their craft.

This is the first time in history that the human race has encountered hostile aliens who came to us through normal space.

It isn't as if she'd be likely to encounter aliens on picket duty.

Some have allegedly reported seeing an alien base (code named "Luna") and even encountered aliens who told them to stay off the Moon.

There he encounters savage and monstrous aliens, a beautiful princess, and a life of adventure and wonder.