Europa (one of Jupiters moons) Enhanced-color view of part of Conamara Chaos, showing ice rafts up to 10 km (6 mi) across. White areas are ejecta from the crater Pwyll Craggy, 250 m high peaks and smooth plates are jumbled together in a close-up of Conamara Chaos
The craters Gula and Achelous (bottom), in the grooved terrain of Ganymede, with ejecta "pedestals" and ramparts. Ganymede (one of Jupiters moons)
Io (one of Jupiters moons) The detection of very high temperature volcanism--hotter than any terrestrial lavas currently erupting--is one of the most spectacular discoveries by the Galileo mission at Io. The images show curtains of lava fountains erupting on the surface. They were taken by the Galileo spacecraft on 11/26/99. The active region is approximately 25 kilometers long (15.5 miles) and 1 km (.6 mile) high.
Galileo image of cratered plains, illustrating the pervasive local smoothing of Callisto's surface Callisto (one of Jupiters moons)
OPTICAL Crab Nebula In the constellation of Taurus, a star is exploding. The explosion began with a supernova almost a thousand years ago, and the resulting Crab Nebula is continuing to expand at more than 1,000 km per second. It is home to a powerful pulsar.
The Horsehead Nebula is a dark nebula in the constellation Orion. The nebula is located just to the south of the star Alnitak, which is farthest east on Orion's Belt, and is part of the much larger Orion Molecular Cloud Complex.
The Orion Nebula is a diffuse nebula situated south of Orion's Belt in the constellation of Orion. It is one of the brightest nebulae, and is visible to the naked eye in the night sky. Horsehead
The Cat's Eye Nebula (NGC 6543, Caldwell 6) is a planetary nebula in the constellation of Draco
Multiwavelength X-ray, infrared, and optical compilation image of Kepler's supernova remnant, SN 1604.