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مشاهدة النسخة كاملة : Nasa will send helicopter to Mars to test otherworldly flight


BECKHAM
12-05-2018, 05:20 AM
The space agency says it will be the first test of a heavier-than-air aircraft on another planet.

for more... (http://www.bbc.co.uk/news/world-us-canada-44090509)