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

The Air Force’s Bell X-1 rocket plane started its famous supersonic flights by being dropped from a high-flying B29. Last week, trying something new, it took off from the ground for the first ...

While this latest test doesn’t make nuclear-powered rocket engines viable just yet, it’s an important step on the journey.

The trials verify that the fuel can survive the harsh environment of a nuclear rocket reactor. Up until now, the main way of propelling spacecraft has been through chemical rockets. To be fair ...

Space is the only place where rocket fuel could be more precious than water. The China Manned Space Agency announced last month that taikonauts on the ongoing Shenzhou-19 mission successfully produced ...

Breathing New Air Chinese astronauts claim to have created rocket fuel on board the country's Tiangong space station using a ...

The fourth edition of LEAP, Saudi Arabia’s technology event, is set to host the annual Rocket Fuel Startup Pitch Competition. LEAP 2025 will take place at the Riyadh Convention and Exhibition ...

The New Glenn rocket’s first-stage booster has now burned through most of its fuel, and the company declared ... that 1 a.m. is when the rocket will take off. Any minor hiccup — from ...