NASA picks surface geophysics mission to probe for cave beneath lunar pit

Four and a half billion years ago, Earth and Mars were born in the rotating cloud of gas and dust that would become the Solar System. Exactly how the planets formed remains one of ...

Saturn's icy moon Enceladus hides a global ocean beneath its frozen surface. From fractures near its south pole, material from this ocean is ejected into space as a plume of water ...

Satellites that navigate by ranging to one another slowly lose their sense of direction, because nothing in a purely Earth-orbiting network provides a fixed reference in space. A n...

Rising temperatures and shrinking sea ice are opening Arctic waters to more shipping, and an Australian physicist argues that high-frequency (HF) radar could help navies and govern...

Yemen's Houthis claimed an attack on an oil facility near the Saudi capital on Saturday, where an AFP journalist saw flames and smoke, and accused the Gulf kingdom of striking Sana...

Another former OpenAI employee has added his voice to a chorus of frantic calls to make AI safe, saying the industry must mimic the aviation or nuclear power sectors with their lay...