The carnival of space #87 is up at Martian chronicles.
This site contributed one of the article on Cambridge Universities new carbon nanotube ribbons that are 4 to 5 times stronger than Kevlar
Martian Chronicles discussed the methane discovered in three locations on Mars which is likely from some kind of microbial life.
Discovery had a debate about whether now is time for a large investment in space based solar power satellites. The debate mostly ended up focused on whether nuclear energy should be scaled or not.
Starts with Bang talks about how easy it would be to terraform Mars.