X-rays stream off the sun in this first picture of the sun, overlaid on a picture taken by NASA Solar Dynamics Observatory SDO, taken by NASA NuSTAR. The field of view covers the west limb of the sun.

A large number of spacecraft have been sent to space over the years to study the star in our solar system, but they all tended to follow the same recipe: they lined up in orbit around the Sun within a ...

When my colleagues and I send them out to explore our solar system, it's important for us to understand the 3D map of our space neighborhood.

The Sun’s poles are one of the last uncharted frontiers in solar physics. While space-based satellites and ground-based telescopes have provided extraordinary views of the solar surface, atmosphere, ...

Most people think they know exactly where “down” is. It’s the direction your feet point. But that familiar sense of orientation starts to unravel when viewed from space. What happens to “down” when ...