Humans may soon be heading into space—powered by green engines.
A British company says it successfully tested an eco-engine that could propel a rocket into orbit. The company says it uses the cleanest propellants there are.
Humans may soon be heading into space—powered by green engines.
A British company says it successfully tested an eco-engine that could propel a rocket into orbit. The company says it uses the cleanest propellants there are.