The RPS uses two Stirling engines to convert the heat generated by the decay of Plutonium-238 (Pu-238) into electricity.

The founder of SpaceX said President Trump had asked his company to return two astronauts aboard the space station to Earth ...

Astronomers now suggest that the small celestial body, initially dubbed Earth’s “mini-moon” 2024 PT5, might be a lunar ...

A chunk of space rock that visited near Earth's orbit last year was widely called a "mini-moon," a nickname that was more ...

A small piece of space rock that lingered near Earth last year, which was dubbed its temporary “mini-moon” may have been a ...