But there's something that can be done to make space missions even cheaper and faster: a fully reusable two-stage rocket. For now, the reusable term only applies to a rocket's first stage ...

One just launched the world’s biggest rocket ... of the “Ship” upper stage, which sported a new aerodynamic design, different heat shield and more. Two main goals were the most important ...

But pointing out that lightweight cardboard tubes can be tricky to ship without getting crushed, [Concrete Dog] has come up with HEXA, a clever model rocket kit that uses pre-scored cardstock instead.