Spinning 390 times a second, the "black widow" pulsar PSR J1311−3430 periodically swings its radio (green) and gamma-ray (magenta) beams past Earth in this amazing space wallpaper.

Before the Window Score: 2/5. When Black Widow really wants to use the 3D effect to penetrate the screen, it’s a lot of fun to behold. Scattered throughout various points of Scarlett Johansson ...