NASA's Saturn exploration spacecraft, Cassini , has discovered an atmosphere about the moon Enceladus . This is the first such discovery by Cassini, other than Titan , of the presence of an atmosphere around a Saturn moon.
Cassini traveled into space
( z1 travel :ARG0 ( z2 spaceship :name ( z3 name :op "Cassini" ) ) :ARG4 ( z4 space ) )