There are tens of billions of Sun-like stars in the Milky Way, an immense tally that encourages the possibility that extraterrestrial life peppers the universe. Finding evidence for aliens - even ...

First contact with alien civilizations won’t be with the beings themselves, but with their technology. By searching for these extraterrestrial artifacts, we embark on a journey through our solar ...

In these science fiction books, extraterrestrial beings are sympathetic, horrifying and everything in between.