The European Space Agency last week released four stunning high-res images that show the sun in all its fiery glory.

Yesterday, Dec. 17, the sun fired out an 'extremely rare' farside coronal mass ejection (CME) — a vast plume of plasma and magnetic field.

This is a picture of Earth and the moon. Our planet is obvious, on the far right side of the image, but the moon is a little harder to spot. Do you see it? This isn't a prank. The moon is there.

Earth zooms through its orbit at an average velocity of 18.5 miles a second. During this circuit, our planet is an average of 93 million miles away from the sun, a distance that takes light about ...

When we see the Sun moving across the sky during the day it’s because the Earth is spinning, not the Sun. Let’s put a marker on Scotland. When this part of the Earth is facing the Sun it’s ...