^ Stormy weather
Temperature differences within interstellar clouds of gas and dust can result in structures reminiscent of Earth's tornadoes. Here are some twisters in the heart of the Lagoon Nebula.
^ Sunny side up
The small spiral galaxy NGC 7742 is probably powered by a black hole residing in its core. The core of NGC 7742 is the large yellow "yolk" in the center of this fried-egg image.
^ Feeding a black hole
A spiral-shaped disk of dust fuels what scientists believe is a black hole near the center of the galaxy NGC 4261. The material heats up and glows as it swirls around the black hole.
^ Light up the night
Like lanterns in a cavern, scores of hot stars light up the gaseous walls of the nebula NGC 604. The nebula is a prime area for starbirth in an arm of the spiral galaxy M33.
^ Supernova circuits
Three rings of glowing gas encircle the site of supernova 1987A, a star that was seen to explode in 1987. Though the rings appear to intersect, they are probably in three different planes.
^ Surrealistic Saturn
A false-color image shows infrared light reflected from the planet Saturn. The different hues help scientists discern different levels of the planet's thick atmosphere. Two of Saturn's moons - Dione and Tethys - are visible as specks on the image.
^ Jupiter's aurora
A curtain of glowing gas is wrapped around Jupiter's north pole like a lasso in a Hubble Space Telescope image captured in 1998. The curtain of light, called an aurora, is produced when high-energy electrons race along the planet's magnetic field and into the upper atmosphere. The electrons excite atmospheric gases, causing them to glow. A similar aurora crowns Earth's polar regions.
^ Cosmic Horsehead
The Horsehead Nebula is one of the most photographed objects in the sky. The Hubble Space Telescope took a close-up look at this heavenly icon, revealing the cloud's intricate structure. This view of the horse's head was released April 24, 2001, to celebrate the observatory's 11th anniversary. Hubble was launched by the shuttle Discovery on April 24, 1990.
From :
http://www.msnbc.com/c/0/31/282/ssMain.asp?fmt=&sld=0&res=inline&0ss=N1b1431282