Of the 100 billion or more galaxies visible through existing telescopes, most are either spiral or elliptical in shape and about one-fourth are irregular in shape. In addition to their shape, star systems can be further...
Black holes are some of the strangest objects in the universe. While the physics of these objects is not understood, and they cannot be seen directly, indirect observations have revealed for certain that black holes do...
Mars has intrigued people for centuries, in particular because of its potential for extraterrestrial life. Today, technology has advanced to the point that scientists can actually send robots such as those used in...
During the first of two landings in the Mars Exploration Rover mission, scientists and engineers were full of anticipation and anxiety the night that the rover 'Spirit' was due to land. Would the rover land safely and...
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