Could an ocean – likely needed to sustain life – even survive on a planet orbiting close to a dead star? The sun will someday ...

Three months after Muon Space launched its FireSat Protoflight satellite, the spacecraft's first images have been released. FireSat is the first in a proposed constellation of more than 50 satellites ...

As it hurtles out of our solar system, NASA’s New Horizons spacecraft is so far from Earth that the stars in the Milky Way appear in markedly different positions compared with our own view.