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

[The Q] is one such experimenter, who built a dual-thrust water rocket that even has a parachute for landing! The testing took place in an area strangely reminiscent of a certain operating system.

But now a teacher has gone and ruined all that by making an air-water rocket launching pad for his STEM students. Just kidding — [Robert Hart] must be the coolest teacher in Australia when ...