Speaking to the BBC about the UK Mars exploration mission Beagle 2 Professor Colin Pillinger said that one of the biggest lessons learnt was not having had a radio beacon active during the decent phase and therefore not knowing what finally happened.

http://www.uk.amsat.org/2011/12/27/bbc-interview-with-professor-colin-pillin...

AMSAT-UK: http://www.uk.amsat.org/ ---- 73 Trevor M5AKA