MacDonald, Dettwiler and Associates Ltd.
(TSE: MDA) announced today the company has been awarded contracts by NASA and
the Canadian Space Agency (CSA) to provide continued engineering support for
the International Space Station.

The NASA contract, valued at up to $4.25 million (CDN), runs through to
July 2005, extending the technical services provided by MDA subsidiary MD
Space Robotics since 1997. The new funds will be used for the integration of
Space Station software models into NASA simulators, flight operations support
for the Mobile Servicing System, data definition and tracking, and various
robotic studies.

The CSA contract, valued at $1.1 million, is for flight operations support of
the Canadarm2 and future Canadian robotics elements that will be installed on
the Space Station. The contract runs until March 2002, with an option for an
additional year. This is a continuation of work MDA has performed for the CSA
over the past three years in Saint-Hubert, Quebec.

The Robotic Work Station and the Canadarm2 were successfully installed
earlier this year on the International Space Station. Other MDA robotics
systems, the Mobile Base System and the SPDM (the new two-armed robot), are
scheduled for launch in 2002 and 2003 respectively.

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For further information:

Ted Schellenberg
Media Relations, MacDonald Dettwiler
(604) 231-2215,