Ultraviolet light to the extreme

When you heat a tiny droplet of liquid tin with a laser, plasma forms on the surface of the droplet and produces extreme ultraviolet (EUV) light, which has a higher frequency and greater energy than normal ultraviolet.

Hubble snaps pic of Necklace Nebula



NASA's Hubble Space Telescope has captured a beautiful picture of a giant cosmic necklace. Aptly dubbed the Necklace Nebula (PN G054.2-03.4), the image shows a recently discovered planetary nebula - the glowing remains of an ordinary, Sun-like star.