The aliens who created it actually knew what life is made of.

The aliens did not know what to make of her and the darkship.

Although, come to think of it, most aliens probably did not know.

Then again, he told me, the situation could be worse: maybe the aliens know we're here, and they just don't care.

"You think that they were able to let their fellow aliens know about what happened to them?"

These aliens just don't know what they're up against, he thought, satisfied.

The aliens will know all about it before we do.

If the aliens know what I'm thinking they will stop me.

He hoped the aliens did know what they were doing.

The alien didn't know what to say to that.