On today’s episode of “What If?” — what if the Apollo 13 astronauts had a 3D printer? Well, for one thing, they may have been able to avoid all the futzing with duct tape and procedure ...

ENSCHEDE, Netherlands — Carbon dioxide pumped ... stabilizing at 0.019 in 3D simulations, approximately 13% higher than in 2D estimates – not 25% higher as previously thought. The team also developed ...