When NASA’s twin Voyager probes left Earth in 1977, they carried computers weaker than a hand calculator and a modest goal of ...

The boundary of the Solar System remains somewhat poorly understood. We know we are within it, in a region of space called ...

Close-up observations of the Sun explain how solar flares start, grow, and send high-energy particles racing through space.

Solar flares have an enormous impact on the wider Solar System. These sudden releases of energy can cause geomagnetic storms on Earth and radio blackouts too, like the one that's happened in the last ...

Using data collected by NASA's Parker Solar Probe during its closest approach to the sun, a University of Arizona-led ...

The most intense type of solar flares emitted by the Sun is the X-class, and several of them in a short period of time is ...

Solar wind sounds poetic, but it's a very real and powerful phenomenon, connecting the Sun to every part of our solar system.

A NASA spacecraft has just reached its permanent observation point to begin a mission unlike any before. Known as IMAP, the ...

Humanity has already flung machines into interstellar space, but sending people is a different problem entirely. The physics ...

Billions of years in the future, our Sun will become a red giant and then die out. But when the Sun dies, where do we go? Well, Elon Musk's Mars mission is starting to look appealing. Could Mars be ...