SpaceX and Blue Origin have different visions for the future of space exploration. How will their rocket engines power the ...

This engine won't be fueling interstellar missions, but still finds an unexpected way to use deep space energy to generate ...

American space agency NASA and space company L3Harris announced they've conducted a test firing of the second new RS-25 ...

Russia's space program is struggling with sanctions placed on the country as a result of its war with Ukraine, and it could ...

In a striking new view from space, the European Space Agency's Solar Orbiter has given scientists their first close-up ...

Engineers at the University of California, Davis, have invented a device that can generate mechanical power at night by ...

Engineers are using the temperature difference between Earth and space to power a low-temperature Stirling engine that drives ...