Carnival of Space 502

The Carnival of Space 502 is up at Urban Astronomer.

Evolving Planet – Origami-inspired Microbots, Our Future Planet Explorers

Nextbigfuture – 3d printing using simulated lunar and martian regolith combined with common biologically derived polymer

Nextbigfuture – Next Japanese solar sail will be 10-15 times bigger than Ikaros solar sail and have a far better ion engine