But the simple fact is that we have not yet found extraterrestrial life.

It is about the first human contact with extraterrestrial life.

Extraterrestrial life was now more than just the stuff of dreams.

Planets in these areas are the most likely to have extraterrestrial life.

She's been searching for signs of extraterrestrial life ever since she was a little girl.

This equipment has been assembled for study of extraterrestrial life.

However, there may be another way to detect signs of extraterrestrial life.

"And searching for extraterrestrial life was a hot subject that we thought would sell," she said.

But a more fundamental reason for our failure to find extraterrestrial life could be that we are, indeed, alone.

I was already quite certain that extraterrestrial life exists in the universe.

And this, they said with rising enthusiasm, might just be the place to look for extraterrestrial life.

What are the odds there is extraterrestrial life in outer space?

It was one of the famous proposals in the literature on extraterrestrial life.

That, they added excitedly, might be the perfect place to look for extraterrestrial life.

He was now the man who had discovered the first indisputable evidence of extraterrestrial life.

Until we have discovered at least one example of extraterrestrial life, however, that conclusion cannot be considered secure.

It was the presence of extraterrestrial life hovering above the stadium.

The possibility of extraterrestrial life is not, by itself, a paranormal subject.

In the year 2248, the first recorded sign of extraterrestrial life was discovered coming from Mars.

It is not known if there is any extraterrestrial life.

My previous beliefs about extraterrestrial life were always based on a distant possibility.

Many of his books also touched on extraterrestrial life and the nature of the mind.

John Carter explores extraterrestrial life, science fiction and civil war.

The scientific search for extraterrestrial life is being carried out both directly and indirectly.

They decided that water was the key ingredient for Earth-like extraterrestrial life.