Space Photos of the Week: Eyes in the Sky

Space Photos of the Week: Eyes in the Sky

The photo was taken with NASA’s Wide-field Infrared Survey Explorer—a telescope with a very wide lens that looks at the universe in infrared light.

Super Planetary-Motion Smackdown: Kepler v. Newton

Super Planetary-Motion Smackdown: Kepler v. Newton

The ancient Greeks studied the earth and the sky, but their basic model had all the objects (sun, moon, and planets) moving in circles around us.Is there a more fundamental model that could explain both the motion of a planet orbiting the sun and the motion of the moon orbiting Earth?

Space Photos of the Week: The Galaxy Next Door

Space Photos of the Week: The Galaxy Next Door

If you’re able to divert your eyes from the big show in the upper right, take a look at the object in the center of the image: That blue cloud is LHA 120-N 180B, likely an active star-forming region.