User Reviews

  • 8 January 2019 at 7:14 pm
    A conversational exploration of the possibility of life beyond Earth. Within a section on how the Earth may have been visited long ago by “voyaging aliens,” perhaps even before humans had evolved, Wall writes, “let’s indulge in some wild speculation,…

    Full Review

Add a Review

To leave a review you need to be logged in to your account on ENGins.

Sign up for free or log in if you already have an account.