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Space Security 2010 is the seventh annual report on trends and developments related to security
and outer space, covering the period January to December 2009.1 It is part of the broader
Space Security Index (SSI) project, which aims to improve transparency with respect to space
activities and provide a common, comprehensive knowledge base to support the development
of national and international policies that contribute to space security.
The definition of space security guiding this report reflects the express intent of the 1967 Outer
Space Treaty that space should be preserved as a global commons to be used by all for peaceful
purposes:
The secure and sustainable access to, and use of, space and freedom
from space-based threats.