You're not imaging it. The sun has been rising later in Illinois following the winter solstice. But the days aren't getting shorter. Here's why.

Every year in early January, Earth reaches the closest point in its orbit to the Sun, a moment astronomers call perihelion.

Our grasp of how stars rotate is "insufficient," with implications on our ability to understand the causes of phenomena on the sun like solar flares and coronal mass ejections that cause aurora and ...

Since Pluto is located so far from the sun, it takes around 248 Earth years for Pluto to orbit the sun. Pluto's orbit around the sun is not only a very long journey, it's also elliptical, resembling a ...