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.

One just launched the world’s biggest rocket, with mixed success. The other makes small model rockets for hobbyists, and it's stockpiling supplies ahead of Trump's tariffs.

Blue Origin's NS-29 New Shepard rocket will launch on Jan. 28 at 11:30 a.m. EST (1630 GMT) if all goes well. Here's what to ...