Thank You For Your Purchase!

Thank you for purchasing the PDF version of Exploring Space: Opening New Frontiers.  You will receive an email that provides an encrypted link to a downloadable version of the book.  The link will remain valid for 12 hours.

Be patient – the file is large and takes time to complete the download.  If it fails to complete, try refreshing the browser page.

 If there are issues with your purchase, please contact us at sales@exploringspace.info for assistance.  Thank you.