Various options for the possible construction of satellite constellations are being investigated to meet the increasing demand for national capabilities. Each constellation would cost between one and ...

Further studies are needed to determine whether K2-18b, which orbits a star 120 light-years away, is inhabited, or even ...

Explore the return of sunlight after years of global dimming. Discover how air pollution reduction is affecting sunlight ...

This mission will pave the way for groundbreaking observations of everything from petroleum reserves to global supplies of ...