There are surprising signs of unrest in a massive cluster of stars. By comparing observations made ten years apart of the nebula NGC 3603, astronomers have for the first time measured the tiny motions of several hundred young…
Full size image NGC 6118, a grand-design spiral galaxy, shines bright in this image, displaying its central bar and tight spiral arms from its home in the constellation of Serpens (The Snake). The galaxy is sometimes known to…
Enlarge apod.nasa.gov The Heart and Soul nebulae are seen in this infrared mosaic from NASA's Wide-field Infrared Survey Explorer, or WISE. The image covers an area of the sky over ten times as wide as the full moon…
