This skywatching quiz will test your knowledge of how eclipses, when to see them, and what makes each one so spectacular.

As the comet gets closer to the Sun, the ice bound around its rocky core begins to sublimate, transforming into a gaseous atmosphere, or coma. The molecules in the coma fluoresce under solar radiation ...

For the past few days, the interstellar comet 3I/ATLAS has been displaying a blue-green gas coma measuring 2.5 arcminutes ...

Here's what happens as the direct rays of the sun slip south of the equator as the seasons change.

The bottom half of the world, known as the Southern Hemisphere, is about to be treated to a partial solar eclipse that won't ...