Page "Freeman Dyson" Paragraph 33

Dyson also has proposed the use of bioengineered space colonies to colonize the Kuiper Belt on the outer edge of our Solar System.

He proposed that habitats could be grown from space hardened spores.

The colonies could then be warmed by large reflector plant leaves that could focus the dim, distant sunlight back on the growing colony.

This was illustrated by Pat Rawlings on the cover of the National Space Society's Ad Astra magazine.