Eco-friendly alternatives to fossil fuels are venturing beyond Earth—and into space.

Such projects always hold the potential for entertainingly over-the-top designs, materials ... for charging and launching air-powered water rockets. The process started with a prototype, built ...

This clip has detailed instructions and guidelines that could be used prior to initiating an investigation into simple water rocket design and construction. It explains how rockets work and ...

When integrated with a little bit of plumbing, they can also be used to provide a large amount of hot water to something like an off-grid home as well. [Little Aussie Rockets] starts off the build ...