Eclipses don't happen at random — they arrive in pairs, on schedule, and 2026 brings two spectacular seasons to prove it.

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.

The moon just doesn’t wander freely across the sky as it orbits our world every month. It closely, but not exactly, follows the ecliptic — the line in the sky marking the plane of Earth’s orbit around ...

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 ...