Directed panspermia: a 21st century perspective

Applying 21st century technology to the design and development of a hypothetical extra-terrestrial colonisation programme,  Smith and Sleator reimagine directed ‘panspermia‘ from the perspective
of Crick and Orgel’s’ technological society’,  44 years after the publication of their original.

http://www.ingentaconnect.com/contentone/stl/sciprg/2017/00000100/00000002/art00002