Not related to books/blogs/tweets, but if you are looking at space tech for 5-10 years from now, it might make sense to pay attention to 3D printing and anything around resource extraction robotics.
Exploiting offworld resources (like Trojan asteroids) will soon be possible with machines we can design, build, and test on Earth.
Exploiting offworld resources (like Trojan asteroids) will soon be possible with machines we can design, build, and test on Earth.