At the ragged frontier where the Sun’s influence gives way to interstellar space, Voyager 1 has stumbled into something that sounds more like science fiction than plasma physics: a blisteringly hot ...

A NASA mission to study the heliosphere—the sun's magnetic bubble that shields our solar system—and develop a better understanding of space weather was launched from the agency's Kennedy Space Center ...

Illustration comparing the planets of the Solar System and the Sun on the same scale. The planets are shown to scale relative to each other but their distances are not. From left to right the bodies ...