The northwestern part of Greece is pictured in this space wallpaper by the Landsat-8 satellite. The Ionian Sea dominates the left side of the image, with the Ambracian Gulf near the center.

The NASA/ESA Hubble Space Telescope a new space wallpaper image of the Antennae Galaxies.The galaxies — also known as NGC 4038 and NGC 4039 — are locked in a deadly embrace. Once normal ...