A US rocket used to launch many scientific and communications satellites since 1960. Its design is based on the Thor ballistic missile. Several increasingly powerful versions have been produced as satellites became larger and heavier. Solid-fuel boosters were attached to the first stage of the rocket in order to increase lifting power.
NASA's twin rovers were launched to Mars in June and July 2003 atop a Delta 2 rocket.
http://www.boeing.com/defense-space/space/delta/deltahome.htm Illustration of the design and capabilities of the modern Delta rocket family. The site includes information on the history of the Delta rocket and news of forthcoming launches. Via the Delta communications pages, visitors can access Boeing's impressive image gallery.
Subjects: Astronomy and Astrophysics.