According to the equations that govern black holes, the larger one of these cosmic behemoths is the lower its average density ...

Space-based solar power is emerging as a potentially transformative clean energy technology that could drastically cut ...

Spirals of solar wind can spin off larger solar eruptions and disrupt Earth's magnetic field, yet they are too difficult to ...

Sean Duffy, the acting NASA Administrator, discusses the future of space exploration including putting a man on Mars.