milky way next to planets and M31

perseid meteor shower

In an interplanetary first, on July 19, 2013 Earth was photographed on the same day from two other worlds of the Solar System.

Nature photographers and other fans of planet Earth always look forward to the blue hour.

What's that dark spot on Jupiter?

After sunset on October 3, some of the Solar System's largest moons stood low along the western horizon with the largest planet.

Clouds drift through the sky as the light fades near sunset in this three frame animated gif.

Do you see the hourglass shape -- or does it see you?

This week the equinox found the Sun near the middle.