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1977 unique 4 planetary mission

Posted: Sat Jun 27, 2015 6:56 am
by Czert
just watched documentary in which they told that in this year was posible this unigue missin (once per 149 years iirc) - and that you will lauch probe whch will fly around all 4 outer planets, and main goal was to send probe to uranus - using of gravity pull to modify probe fly trajectory.
and this comed to my mind - in old baris mission to some planets were avaivable only during certain time (for fuel efficiency)- but cant recall anything simmiliar in this new baris.