They have been spotted communicating with what seemed like alien life.

I'm orbiting the first planet ever found to hold alien life.

Where else can a science of alien life be practiced?

True science has determined that there is no alien life.

The most basic part of the training, how to handle contact with alien life.

Finding any kind of alien life was seen as a threat to belief in God.

But alien life, now that made a certain kind of sense.

Others were blank, yet they all possessed that alien life.

Even if alien life has not endured to the present day, it may still have left its mark.

Time was when humans back on Earth had been terrified at the report of alien life.