Spacecraft have used ion drives to explore the moon and deep space, but a new study aims to boost the electric propulsion idea to keep satellites around Earth alive longer.Full story
Georgia Tech assistant professor Mitchell Walker and graduate student Logan Williams examine a 10-kilowatt Hall effect thruster during research to develop a better ion drive.
On Sept. 3, 2006, the European Space Agency's SMART-1 spacecraft went out with a bang - a planned crash landing into a volcanic plain called the Lake of Excellence. The impact, shown here, was captured by the Canada-France-Hawaii Telescope. (The black lines are a processing error due to the brightne