 "Composite image of micro-quasar GRS 1915105")
Worldbook at NASA
Solar System: A group of heavenly bodies consisting of a star, planets and other objects orbiting around it.
NASA Facts: Chandra
The Chandra X-ray Observatory is the world's most powerful X-ray telescope. It has eight-times greater resolution and is able to detect sources more than 20-times fainter than any previous X-ray telescope.
 "Animation of supernova remnant Cassiopeia A")
 "Combined observations of supernova remnant Cassiopeia A")