22 June 2011 Updated at 02:39 ET
Europe joins up space and defence
Jonathan Amos
Science correspondent, BBC News, Paris
Esa is looking to build a radar system that will scan low-Earth orbits to detect hazardous debris objects
Two European organisations - one concerned with space, the other with defence - have signed an agreement on closer co-operation.
link-
http://www.bbc.co.uk/news/science-environment-13867554