This site provided an article on the Valkyrie antimatter propulsion spaceship design which was used in Avatar. The article also had a video tutorial on antimatter and a NASA paper on scaling up antimatter production.
This site also supplied the article on What would it take to power a Yottawatt civilization ? Nuclear fission, nuclear fusion or space based solar. How long would each last ?
Astroblog looks at the Sun from other planets
21st Century Waves looked at ten trends for space in 2010
This looks at the new approach to space that is happening with the budgetary shifts.
Check out the Carnival of Space 139 at mamajoules for more