A fiery blasts rocks the south tower of the World Trade Center as the hijacked United Airlines Flight 175 from Boston crashes into the building September 2001 in New York City. (Spencer Platt/Getty Images) (Page
simulated view from the surface of Jupiter's moon Europa. Europa's potentially rough, icy surface, tinged with reddish areas that scientists hope to learn more about, can be seen in the foreground. The giant planet Jupiter looms over the horizon.
The nearby dwarf galaxy NGC 1569 is a hotbed of vigorous star birth activity, which blows huge bubbles that riddle the galaxy's main body. The image was taken by the camera, designed and built by JPL, on NASA's Hubble.