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Hasn't successfully landed

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Latest post Sat, May 24 2008 2:01 PM by optilang. 1 replies.
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New2grammar  +  518427 Sat, 24 May 08 01:47 PM

Another aspect of the Phoenix landing that has the team worried is the landing system itself. NASA has not successfully landed a probe on Mars using landing legs and stabilizing thrusters since the Viking missions in the late 1970's.

Does it mean Viking missions were successful in landing using landing legs and stabilizing thrusters?

Thanks in advance!
New2grammar
Joined on Tue, Nov 21 2006
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optilang  +  518432 Sat, 24 May 08 02:01 PM
 Yes
optilang
Joined on Tue, May 13 2008
Poland
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OptiNative British English Speaker Wherever I may roam, I'm still a Londoner.
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