Although Cassini isgone ,   it has dramatically modify what we sleep with of Saturn and its moons . And while we know a lot more about the organization , there are new mysteries that   will have to wait to be work out . Among them is whether or not a possible   lunation nicknamed Peggy is really imprint within its rings .

The moonlet ’s macrocosm is count on from disturbances in the rings , which was first seen by uranologist Carl Murray , a scientist from Queen Mary University of London . These wave in the rings have been associated with the shepherd moons , small planet that dwell the rings and help keep them stable .

In 2013 , Murray remark Modern wobbles , but no lunar month . Over the next few years , researchers have been going through the Cassini images to get as much information as possible on this target . The squad has never decide the object , but   free-base on the size of it of the hoo-hah , it would be very expectant . This   suggests that it ’s likely a big swarm of debris at the moment , and   that   it ’s quite fighting as it might have break up in two a few long time ago .

“ When Cassini come out of its ring plane orbit in early 2016 , we went back to look where Peggy should be ; and we find Peggy and we ’ve been pass over it ever since , ” Murray toldBBC Newsearly this year .

“ But a few degree behind we could also see another aim , even fainter in the sense that it had an even minor ( disturbance ) signature . And when we tracked back the paths of both aim , we realised that in early 2015 they would have met . So , probably , Peggy ' B ' , as we call it , came from a collision of the sort that cause Peggy to change its orbit , but rather than a mere encounter that forfend the sphere slenderly , this was more serious . ”

Murray is presently working on the data from the last musical passage , just before Cassini dunk into Saturn . “ I could n’t find oneself Peggy in the datum though I ’m still looking , ” he told Mika McKinnon atGizmodo . “ Peggy ’s probably there , I just have n’t found exactly where yet . ”

Peggy is named after Murray ’s female parent - in - law as he discovered it on her natal day . If the latest datum does n’t provide new clues , it might take 10 before we have an answer regarding Peggy . There areseveral newfangled missions that proposegoing back to Saturn , but none of these have been approved yet .

[ H / T : Gizmodo ]