Nuclear power plants are safer than many suspect. But putting reactors in space is a concept with a checkered history. One ...

European scientists are turning an aircraft into a laboratory that simulates lunar gravity to prepare astronauts and ...

Without the Moon, Earth’s geology, biology, and climate — as well as human philosophy — would be different in many significant ways. If Earth had no Moon, the postulated origin of the Moon through a ...

NASA’s moon exploration plans call for nearly 80 launches, nearly 75 landers, 10 moon buggies and one nuclear reactor ...

Neptune's far-flung moon Nereid may be the last of the planet's original companions that managed to survive a cosmic crash, ...

The billionaire, who wants to ensure humans don't have 'the same fate as dinosaurs', sees a future that includes space ...

NASA spacecraft Psyche has captured a stunning image of Mars ahead of a flyby on Friday (May 15).

Scientists have found a cheaper way to send spacecraft to the Moon by using a gravitational sweet spot as a pit stop, cutting fuel costs by at least 58.80 m/s compared to existing methods.

The Moon is often described as a pristine, silent world. No rain, no wind, no atmosphere to speak of. What that also means, ...

An international team of researchers say they've found a more efficient route from Earth to the moon using advanced computer ...

Neptune’s third-largest moon, Nereid, could be an intact survivor from the planet’s original satellite system, upending ...